earliest times down to the Mahommedan invasion, was worked up | became world-wide, and every contemporary authority is full by him into a connected historical account. of the acclamation with which Orlando was greeted wherever his travels took him. LASSEN, EDUARD (1830-1904), Belgian musical composer, Very soon, with this rapid means of acquiring experience, Orlando's style became as pure as Palestrina's; while he always retained his originality and versatility. His relations to the literary culture of the time are intimate and fascinating; and during his stay at the court of France in 1571 he became a friend of the poet Ronsard. In 1579 Duke Albrecht died Orlando's salary had already been guaranteed to him for life, so that his outward circumstances did not change, and the new duke was very kind to him. But the loss of his master was a great grief and seems to have checked his activity for some time. In 1589, after the publication of six Masses, ending with a beautiful Missa pro defunctis, his strength began to fail; and a sudden serious illness left him alarmingly depressed and inactive until his death on the 14th of June 1594. If Palestrina represents the supreme height attained by 16thcentury music, Orlando represents the whole century. It is impossible to exaggerate the range and variety of his style, so long as we recognise the limits of 16th-century musical language. Even critics to whom this language is unfamiliar cannot fail to notice the glaring differences between Orlando's numerous types of art, though such critics may believe all those types to be equally crude and archaic. The swiftness of Orlando's intellectual and artistic development is astonishing. His first four volumes of madrigals show a very intermittent sense of beauty. Many a number in them is one compact mass of the fashionable harsh play upon the "false relation" between twin major and minor chords, which is usually believed to be the unenviable distinction of the English madrigal style from that of the Italians. It must be confessed that in the Italian madrigal (as distinguished from the villanella and other light forms), Orlando never attained complete certainty of touch, though some of his later madrigals are indeed glorious. But in his French chansons, many of which are settings of the poems of his friend Ronsard, his wit and lightness of touch are unfailing. In setting other French poems he is sometimes unfortunately most witty where the words are most gross, for he is as free from modern scruples as any of his Elizabethan contemporaries. In 1562, when the Council of Trent was censuring the abuses of Flemish church music, Orlando had already purified his ecclesiastical style; though he did not go so far as to Italianize it in order to oblige those modern critics who are unwilling to believe that anything appreciably unlike Palestrina can be legitimate. At the same time Orlando's Masses are not among his greatest works. This is possibly partly due to the fact that the proportions of a musical Mass are at the mercy of the local practice of the liturgy; and that perhaps the uses of the court at Munich were not quite so favourable to broadly designed proportion (not length) as the uses of Rome. Differences which might cramp the 16th-century composer need not amount to anything that would draw down the censure of ecclesiastical authorities. Be this as it may, Orlando's other church music is always markedly different from Palestrina's, and often fully as sublime. It is also in many ways far more modern in resource. We frequently come upon things like the Justorum animae [Magnum Opus, No. 260 (301)] which in their way are as overpoweringly touching as, for example, the Benedictus of Beethoven's Mass in D or the soprano solo in Brahms's Deutsches Requiem. | In 1557, if not before, he was invited by Albrecht IV., duke of Bavaria, to go to Munich. The duke was a most intelligent | patron of all the fine arts, a notable athlete, and a man of strict principles. Munich from henceforth never ceased to be Orlando's home; though he sometimes paid long visits to Italy and France, whether in response to royal invitations or with projects of his own. In 1558 he made a very happy marriage by which he had four sons and two daughters. The four sons all became good musicians, and we owe an inestimable debt to the pious industry of the two eldest sons, who (under the patronage of Duke Maximilian I., the second successor of Orlando's master) published the enormous collection of Orlando's Latin motets known as the Magnum opus musicum. Probably no composer has ever had more ideal circumstances for artistic inspiration and expression than had Orlando. His duty was to make music all day and every day, and to make it according to his own taste. Nothing was too good, too severe or too new for the duke. Church music was not more in demand than secular. Instrumental music, which in the 16th century had hardly any independent existence, accompanied the meals of the court; and Orlando would rise from dessert to sing trios and quartets with picked voices. The daily prayers included a full mass with polyphonic music. This amazing state of things becomes more intelligible and less alarming when we consider that 16th-century music was no sooner written than it could be performed. With such material as Orlando had at his disposal, musical performance was as unattended by expense and tedious preliminaries as a game of billiards in a good billiard room. Not even Haydn's position at Esterhaz can have enabled him, as has been said, to "ring the bell " for musicians to come and try a new orchestral effect with such ease as that with which Orlando could produce his work at Munich. His fame soon No one has approached Orlando in the ingenuity, quaintness and humour of his tone-painting. He sometimes descends to extremely elaborate musical puns, carrying farther than any other composer since the dark ages the absurd device of setting syllables that happened to coincide with the sol-fa system to the corresponding sol-fa notes. But in the most absurd of such cases he evidently enjoys twisting these notes into a theme of pregnant musical meaning. The quaintest instance is the motet Quid estis pusillanimes [Magnum Opus, No. 92 (69)) where extra sol-fa syllables are introduced into the text to make a good theme in combination with the syllables already there by accident! (An nescitis Justitiae Ul Sol [Fa Mi] Re Laxalas and Hell; the "last day" means the Day of Judgment (see 2. (O.E. lást, footstep; the word appears in many Teutonic "6 3. (O.E. hlaest; the work is connected with the root seen in lade," and is used in German and Dutch of a weight; it is also seen in "ballast "), a commercial weight or measure of quantity, varying according to the commodity and locality; originally applied to the load of goods carried by the boat or wagon used in carrying any particular commodity in any particular locality, it is now chiefly used as a weight for fish, a "last" of herrings being equal to from 10,000 to 12,000 fish. The German Last 40c0 lb, and this is frequently taken as the nominal weight of an English "last." A "last" of wool=12 sacks, and of beer-12 barrels. habenas possit denuo cohibere?). The significance of these euphuistic jokes is that they always make good music in Orlando's hands. There is musical fun even in his voluminous parody of the stammering style of word-setting in the burlesque motet S.U.Su. PER. per. super F.L.U., which gets through one verse of a psalm in fifteen minutes. When it was a question of purely musical high spirits Orlando was unrivalled; and his setting of Walter de Mape's Fertur in conviviis (given in the Magnum opus with a stupid moral derangement of the text), and most of his French chansons, are among the most deeply humorous music in the world. But it is in the tests of the sublime that Orlando shows himself one of the greatest minds that ever found expression in art. Nothing sublime was too unfamiliar to frighten him into repressing his quaint fancy, though he early repressed all that thwarted his musical nature. His Penitential Psalms stand with Josquin's Miserere and Palestrina's first book of Lamentations as artistic monuments of 16th-century penitential religion, just as Bach's Matthew Passion stands alone among such monuments in later art. Yet the passage (quoted by Sir Hubert Parry in vol. 3 of the Oxford History of Music) "Nolite fieri sicut mulus" is one among many traits which are ingeniously and grotesquely descriptive without losing harmony with the austere profundity of the huge works in which they occur. It is impossible to read any large quantity of Orlando's mature music without feeling that a mind like his would in modern times have covered a wider field of mature art than any one classical or modern composer known to us. Yet we cannot say that anything has been lost by his belonging to the 16th century. His music, if only from its peculiar technique of crossing parts and unexpected intervals, is exceptionally difficult to read; and hence intelligent conducting and performance of it is rare. But its impressiveness is beyond dispute; and there are many things which, like the Justorum animae cannot even be read, much less heard, without emotion. " Orlando's works as shown by the plan of Messrs Breitkopf & Härtel's complete critical edition (begun in 1894) comprise: (1) the Magnum opus musicum, a posthumous collection containing Latin pieces for from two to twelve voices, 516 in number (or, counting by single movements, over 700). Not all of these are to the original texts. The Magnum opus fills eleven volumes. (2) Five volumes of madrigals, containing six books, and a large number of single madrigals, and about half a volume of lighter Italian songs (villanellas, &c.). (3) Three volumes (not four as in the prospectus) of French chansons. (4) Two volumes of German four-part and fivepart Lieder. (5) Serial church music: three volumes, containing Lessons from the Book of Job (two settings). Passion according to St Matthew (i.e. like the Passions of Victoria and Soriano, a setting of the words of the crowds and of the disciples); Lamentations of Jeremiah: Morning Lessons; the Officia printed in the third volume of the Patroncinium (a publication suggested and supported by Orlando's patrons and containing eight entire volumes of his works): the Seven Penitential Psalms; German Psalms and Prophetiae Sibyllarum, (6) one hundred Magnificats (Jubilus B. M. Virginis) 3 vols., (7) eight volumes of Masses, (8) two volumes of Latin songs not in the Magnum opus, (9) five volumes of unpublished works. (D. F. T.) LASSO (Span. lazo, snare, ultimately from Lat. laqueus, cf. "lace"), a rope 60 to 100 ft. in length with a slip-noose at one end, used in the Spanish and Portuguese parts of America and in the western United States for catching wild horses and cattle. It is now less employed in South America than in the vast grazing country west of the Mississippi river, where the herders, called locally cow-boys or cow-punchers, are provided with it. When not in use, the lasso, called rope in the West, is coiled at the right of the saddle in front of the rider. When an animal is to be caught the herder, galloping after it, swings the coiled lasso round his head and casts it straight forward in such a manner that the noose settles over the head or round the legs of the quarry, when it is speedily brought into submission. A❘ shorter called lariat (Span. la reata) is used to picket horses. LAST. 1. (A syncopated form of "latest," the superlative | of O.E. laét, late), an adjective applied to the conclusion of anything, al that remains after everything else has gone, or that which has just occurred. In theology the "four last things" denote the final scenes of Death, Judgment, Heaven | LASUS, Greek lyric poet, of Hermione in Argolis, flourished about 510 B.C. A member of the literary and artistic circle of the Peisistratidae, he was the instructor of Pindar in music and poetry and the rival of Simonides. The dithyramb (of which he was sometimes considered the actual inventor) was developed by him, by the aid of various changes in music and rhythm, into an artistically constructed choral song, with an accompaniment of several flutes. It became more artificial and mimetic in character, and its range of subjects was no longer confined to the adventures of Dionysus. Lasus further increased its popularity by introducing prize contests for the best poem of the kind. His over-refinement is shown by his avoidance of the letter sigma (on account of its hissing sound) in several of his poems, of one of which (a hymn to Demeter of Hermione) a few lines have been preserved in Athenaeus (xiv. 624 E). Lasus was also the author of the first theoretical treatise on music. See Suidas ..; Aristophanes, Wasps, 1410, Birds, 1403 and LAS VEGAS, a city and the county-seat of San Miguel county, French comedy. | sanatorium, maintained by the Sisters of Charity, La Salle | and Les Corrivaux, both written apparently by 1562 but not LASWARI, one of the decisive battles of India. It was fought on the 1st of November 1803 between the British under General Lake, and the Mahratta troops of Sindia, consisting of the remnant of Perron's battalions. Laswari is a village in the state of Alwar some 80 m. S. of Delhi, and here Lake overtook the enemy and attacked them with his cavalry before the infantry arrived. The result was indecisive, but when the infantry came up there ensued one of the most evenly contested battles ever fought between the British and the natives of India, which ended in a complete victory for the British. His brother, JACQUES DE LA TAILLE (1542-1562), composed a number of tragedies, of which La Mort de Daire and La Mort d'Alexandre (both published in 1573) are the chief. He is best known by his Manière de faire des vers en français comme en grec et en latin, an attempt to regulate French verse by quantity. He died of plague at the age of 20. His Poésies diverses were published in 1572. I LATAKIA (anc. Laodicea), the chief town of a sanjak in LA TAILLE, JEAN DE (c. 1540-1608), French poet and LATACUNGA (LLACTACUNGA, or, in local parlance, TACUNGA), a plateau town of Ecuador, capital of the province of Léon, 46 m. S. of Quito, near the confluence of the Alagues and Cutuchi to form the Patate, the headstream of the Pastaza. Pop. (1900, estimate) 12,000, largely Indian. Latacunga stands on the old road between Guayaquil and Quito and has a station on the railway between those cities. It is 9141 ft. above sea-level; and its climate is cold and unpleasant, owing to the winds from the neighbouring snowclad heights, and the barren, pumicecovered table-land on which it stands. Cotopaxi is only 25 m. distant, and the town has suffered repeatedly from eruptions. Founded in 1534, it was four times destroyed by earthquakes between 1698 and 1798. The neighbouring ruins of an older native town are said to date from the Incas. The works of Jean de la Taille were edited by René de Maulde (4 vols., 1878-1882). See also E. Faguet, La Tragédie française au XVI, siècle (1883), was no longer any question. Another resolution, of importance for the history of the treatment of heresy, was the canon which decreed that armed force should be employed against the Cathari in southern France, that their goods were liable to confiscation and their persons to enslavement by the princes, and that all who took up weapons against them should receive a two years' remission of their penance and be placed-like the crusaders¬ under the direct protection of the church. Resolutions, ap. Mansi, op. cit. xxii. 212 sq.; Hefele, Conciliengeschichte, v. 710-719 (ed. 2). civilian settlement, the former a Gallic customs station, the | Roman clergy and populace, or of the imperial ratification, there latter, which may be compared to the canabae of the Roman camps, containing the booths and taverns used by soldiers and sailors. He also considers the older station to have been, not as usually supposed, Helvetic, but pre- or proto-Helvetic, the character of which changed with the advance of the Helvetii into Switzerland (c. 110-100 B.C.). La Tène has given its name to a period of culture (c. 500 B.C.-A.D. 100), the phase of the Iron age succeeding the Hallstatt phase, not as being its startingpoint, but because the finds are the best known of their kind. The latter are divided into early (c. 500-250 B.C.), middle (250100 B.C.) and late (100 B.C.-A.D. 100), and chiefly belong to the middle period. They are mostly of iron, and consist of swords, spear-heads, axes, scythes and knives, which exhibit a remarkable agreement with the description of the weapons of the southern Celts given by Diodorus Siculus. There are also brooches, bronze kettles, torques, small bronze ear-rings with little glass pearls of various colours, belt-hooks and pins for fastening articles of clothing. The La Tène culture made its way through France across to England, where it has received the name of "late Celtic "; a remarkable find has been made at Aylesford in Kent. 4. The fourth Lateran council (twelfth ecumenical), convened by Pope Innocent III. in 1215, was the most brilliant and the most numerously attended of all, and marks the culminating point of a pontificate which itself represents the zenith attained by the medieval papacy. Prelates assembled from every country in Christendom, and with them the deputies of numerous princes. The total included 412 bishops, with 800 priors and abbots, besides the representatives of absent prelates and a number of inferior clerics. The seventy decrees of the council begin with a confession of faith directed against the Cathari and Waldenses, which is significant if only for the mention of a transubstantiation of the elements in the Lord's Supper. A series of resolutions provided in detail for the organized suppression of heresy and for the institution of the episcopal inquisition (Canon 3). On every Christian, of either sex, arrived at years of discretion, the duty was imposed of confessing at least once annually and of receiving the Eucharist at least at Easter (Canon 21). Enactments were also passed touching procedure in the ecclesiastical courts, the creation of new monastic orders, appointments to offices in the church, marriage-law, conventual discipline, the veneration of relics, pilgrimages and intercourse with Jews and Saracens. Finally, a great crusade determined that the clergy should lay aside one-twentiethwas resolved upon, to defray the expenses of which it was pope the and the cardinals one-tenth-of their revenues for the next three years; while the crusaders were to be held free of all burdens during the period of their absence. Resolutions, ap. Mansi, op. cit. xxii. 953 sq.; Hefele, Conciliengeschichte, v. 872-905 (ed. 2). See also INNOCENT III. See F. Keller, Lake Dwellings of Switzerland, vi. (Eng. trans., 1878); V. Gross, La Tene un oppidum helvète (1886); E. Vouga, Les Helvètes à La Tène (1886); P. Reinecke, Zur Kenntnis der la Tène Denkmäler der Zone nordwärts der Alpen (Mainzer Festschrift, 1902); R. Forrer, Reallexikon der prähistorischen.. Altertümer (1907), where many illustrations are given. LATERAN COUNCILS, the ecclesiastical councils or synods held at Rome in the Lateran basilica which was dedicated to Christ under the title of Salvator, and further called the basilica of Constantine or the church of John the Baptist. Ranking as a papal cathedral, this became a much-favoured place of assembly for ecclesiastical councils both in antiquity (313, 487) and more especially during the middle ages. Among these numerous synods the most prominent are those which the tradition of the Roman Catholic church has classed as ecumenical councils. 1. The first Lateran council (the ninth ecumenical) was opened by Pope Calixtus II. on the 18th of March 1123; its primary object being to confirm the concordat of Worms, and so close the conflict on the question of investiture (q.v.). In addition to this, canons were enacted against simony and the marriage of priests; while resolutions were passed in favour of the crusaders, of pilgrims to Rome and in the interests of the truce of God. More than three hundred bishops are reported to have been present. 574 For the resolutions see Monumenta Germaniae, Leges, iv., i. 576 (1893); Mansi, Collectio Conciliorum, xxi. p. 281 sq.; Hefele, Conciliengeschichte, v. 378-384 (ed. 2, 1886). 2. The second Lateran, and tenth ecumenical, council was held by Pope Innocent II. in April 1139, and was attended by close on a thousand clerics. Its immediate task was to neutralize the after-effects of the schism, which had only been terminated in the previous year by the death of Anacletus II. (d. 25th January 1138). All consecrations received at his hands were declared invalid, his adherents were deposed, and King Roger of Sicily was excommunicated. Arnold of Brescia, too, was removed from office and banished from Italy. Resolutions, ap. Mansi, op. cit. xxi., 525 sq.; Hefele, Conciliengeschichte, v. 438-445 (ed. 2). 3. At the third Lateran council (eleventh ecumenical), which met in March 1179 under Pope Alexander III., the clergy present again numbered about one thousand. The council formed a sequel to the peace of Venice (1177), which marked the close of the struggle between the papacy and the emperor Frederick I. Barbarossa; its main object being to repair the direct or indirect injuries which the schism had inflicted on the life of the church and to display to Christendom the power of the see of Rome. Among the enactments of the council, the most important concerned the appointment to the papal throne (Canon 1), the electoral law of 1059 being supplemented by a further provision declaring a two-thirds majority to be requisite for the validity of the cardinals' choice. Of the participation of the 5. The fifth Lateran council (eighteenth ecumenical) was from the 3rd of May 1512 to the 16th of March 1517, and was the convened by Pope Julius II. and continued by Leo X. It met last great council anterior to the Reformation. The change in ecclesiastical and political dissensions within and without the the government of the church, the rival council of Pisa, the council, and the lack of disinterestedness on the part of its members, all combined to frustrate the hopes which its convocation had awakened. Its resolutions comprised the rejection of the pragmatic sanction, the proclamation of the pope's superiority over the council, and the renewal of the bull Unam sanctam of Boniface VIII. The theory that it is possible for a thing to be theologically true and philosophically false, and the doctrine of the mortality of the human soul, were both repudiated; while a three years' tithe on all church property was set apart to provide funds for a war against the Turks. LEO X. See Hardouin, Coll. Conc. ix. 1570 sq.; Hefele-Hergenrother, Conciliengeschichte, viii. 454 sq.; (1887). Cf. bibliography under (C. M.) LATERITE (Lat. later, a brick), in petrology, a red or brown superficial deposit of clay or earth which gathers on the surface of rocks and has been produced by their decomposition; it is very common in tropical regions. In consistency it is generally scft and friable, but hard masses, nodules and bands often occur in it. These are usually rich in iron. The superficial layers of laterite deposits are often indurated and smooth black or darkbrown crusts occur where the clays have long been exposed to a dry atmosphere; in other cases the soft clays are full of hard nodules, and in general the laterite is perforated by tubules, sometimes with veins of different composition and appearance from the main mass. The depth of the laterite beds varies up to 30 or 40 ft., the deeper layers often being soft when the surface is hard or stony; the transition to fresh, sound rock | (in arid countries laterite is seldom seen, and where the rainfall is rocks containing aluminous minerals such as felspar, augite, hornmoderate the laterite is often calcareous); third, the presence of blende and mica. On pure limestones such as coral rocks and on quartzites laterite deposits do not originate except where the material has been transported. Laterite occurs in practically every tropical region of the earth, and is very abundant in Ceylon, India, Burma, Central and West Africa, Central America, &c. It is especially well developed where the underlying rock is crystalline and felspathic (as granite gneiss, syenite and diorite), but occurs also on basalts in the Deccan and in other places, and is found even on mica schist, sandstone and quartzite, though in such cases it tends to be more sandy than argillaceous. Many varieties have been recognized. In India a calcareous laterite with large concretionary blocks of carbonate of lime is called kankar (kunkar), and has been much used in building bridges, &c., because it serves as a hydraulic cement. In some districts (e.g. W. Indies) similar types of laterite have been called "puzzuolana" and are also used as mortar and cement. Kankar is also known and worked in British East Africa. The clay called cabook in Ceylon is essentially a variety of laterite. Common laterite contains very little lime, and it seems that in districts which have an excessive rainfall that component may be dissolved out by percolating water, while kankar, or calcareous laterite, is formed in districts which have a smaller rainfall. In India also a distinction is made between high-level" and "low-level" laterites. The former are found at all elevations up to 5000 ft. and more, and are the products of the decomposition of rock in situ; they are often fine-grained and sometimes have a very well-marked concretionary structure. These laterites are subject to removal by running water, and are thus carried to lower grounds forming transported or "low-level" laterites. The finer particles tend to be carried away into the rivers, while the sand is left behind and with it much of the heavy iron oxides. In such situations the laterites are sandy and ferruginous, with a smaller proportion of clay, and are not intimately connected with the rocks on which they lie. On steep slopes laterite also may creep or slip when soaked with rain, and if exposed in sections on roadsides or river banks has a bedded appearance, the stratification being parallel to the surface of the ground. Many hypotheses have been advanced to account for the essential difference between lateritization and the weathering processes exhibited by rocks in temperate and arctic climates. In the tropics the rank growth of vegetation produces large amounts of humus and carbonic acid which greatly promote rock decomposition; igneous and crystalline rocks of all kinds are deeply covered under rich dark soils, so that in tropical forests the underlying rocks are rarely to be seen. In the warm soil nitrification proceeds rapidly and bacteria of many kinds flourish. It has also been argued, that the frequent thunderstorms produce much nitric acid in the atmosphere and that this may be a cause of lateritization, but it is certainly not a necessary factor, as beds of laterite occur in oceanic islands lying in regions of the ocean where lightning is rarely seen. Sir Thomas Holland has brought forward the suggestion that the development of laterite may depend on the presence in the soil of bacteria which are able to decompose silicate of alumina into quartz and hydrates of alumina. The restricted distribution of laterite deposits might then be due to organisms. This very ingenious hypothesis has not yet received the the inhibiting effect of low temperatures on the reproduction of these experimental confirmation which seems necessary before it can be regarded as established. Malcolm Maclaren, rejecting the bacterial theory, directs special attention to the alternate saturation of the soil with rain water in the wet season and desiccation in the subsequent drought. The laterite beds are porous, in fact they are traversed by innumerable tubules which are often lined with deposits of iron oxide and aluminous minerals. We may be certain that, as in all soils during dry weather, there is an ascent of water by capillary action towards the surface, where it is gradually dissipated by evaporation. The soil water brings with it mineral matter in solution, which is deposited in the upper part of the beds. If the alumina be at one time in a soluble condition it will be drawn upwards and concentrated laterites, such as their porous and slaggy structure, which is often so surface. This process explains many peculiarities of marked that they have been mistaken for slaggy volcanic rocks. The concretionary structure is undoubtedly due to chemical rearrangements, among which the escape of water is probably one of the most important; and many writers have recognized that the undergo when dug up and exposed to the air, is the result of desiccahard ferruginous crust, like the induration which many soft laterites tion and exposure to the hot sun of tropical countries. The brecciated structure which many laterites show may be produced by great expansion of the mass consequent on absorption of water after heavy rains, followed by contraction during the subsequent dry season. Laterites are not of much economic use. They usually form a poor soil, full of hard concretionary lumps and very unfertile because Chemical and microscopical investigations show that laterite the potash and phosphates have been removed in solution, while only is not a clay like those which are so familiar in temperate regions; alumina, iron and silica are left behind. They are used as clays for it does not consist of hydrous silicate of alumina, but is a puddling, for making tiles, and as a mortar in rough work. Kankar has filled an important part as a cement in many large engineering mechanical mixture of fine grains of quartz with minute scales works in India. Where the iron concretions have been washed out of hydrates of alumina. The latter are easily soluble in acid by rains or by artificial treatment (often in the form of small shotwhile clay is not, and after treating laterite with acids the alu-like pellets) they serve as an iron ore in parts of India and Africa. mina and iron leave the silica as a residue in the form of quartz. Attempts are being made to utilize laterite as an ore of aluminium, The alumina seems to be combined with variable proportions of also deposits of manganese associated with some laterites in India a purpose for which some varieties scem well adapted. There are water, probably as the minerals hydrargillite, diaspore and which may ultimately be valuable as mineral ores. (J. S. F.). gibbsite, while the iron occurs as goethite, turgite, limonite, haematite. As already remarked, there is a tendency for the superficial layers to become hard, probably by a loss of the water contained in these aluminous minerals. These chemical changes may be the cause of the frequent concretionary structure and veining in the laterite. The great abundance of alumina in some varieties of laterite is a consequence of the removal of the fine particles of gibbsite, &c., from the quartz by the action of gentle currents of water. We may also point out the essential chemical similarity between laterite and the seams of bauxite which occur, for example, in the north of Ireland as reddish clays between flows of Tertiary basalt. The bauxite is rich in alumina combined with water, and is used as an ore of aluminium. It is often very ferruginous. Similar deposits occur at Vogelsberg in Germany, and we may infer that the bauxite beds are layers of laterite produced by sub-aerial decomposition in the same manner as the thick laterite deposits which are now in course of formation in the plateau basalts of the Deccan in India. 66 below may be very sudden. That laterite is merely rotted The conditions under which laterite are formed include, first, a high seasonal temperature, for it occurs only in tropical districts and in plains or mountains up to about 5000 ft. in height; secondly, a heavy rainfall, with well-marked alternation of wet and dry seasons xvi s LATH (O. Eng. laett, Mid. Eng. lappe, a form possibly due to the Welsh llath; the word appears in many Teutonic languages, cf. Dutch lat, Ger. Latte, and has passed into Romanic, cf. Ital. latta, Fr. latte), a thin flat strip of wood or other material used in building to form a base or groundwork for plaster, or for tiles, slates or other covering for roofs. Such strips of wood are employed to form lattice-work, or for the bars of venetian blinds or shutters. A "lattice" (O. Fr. lattis) is an interlaced structure of laths fastened together so as to form a screen with diamond-shaped or square interstices. Such a screen was used, as it still is in the East, as a shutter for a window admitting air rather than light; it was hence used of the window closed by such a screen. In modern usage the term is applied to a window with diamond-shaped panes set in lead-work. A window with a lattice painted red was formerly a common inn-sign (cf. Shakespeare, 2 Hen. IV. ii. 2. 86); frequently the window was dispensed with, and the sign remained painted on a board. LATHE. (1) A mechanical appliance in which material is held and rotated against a tool for cutting, scraping, polishing or other purpose (see TOOLS). This word is of obscure origin. It may be a modified form of "lath," for in an early form of lathe the rotation is given by a treadle or spring lath attached 2a |