The microscope; its history, construction, and application

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الصفحة 599 - Has any seen The mighty chain of beings, lessening down From Infinite Perfection to the brink Of dreary nothing, desolate abyss ! From which astonish'd thought, recoiling, turns ? Till then alone let zealous praise ascend, And hymns of holy wonder, to that POWER, Whose wisdom shines as lovely on our minds, As on our smiling eyes his servant-sun.
الصفحة 329 - All these things live and remain for ever for all uses, and they are all obedient. •• .•- * ' ."..... JIT. All things are double one against another : and he .hath made nothing imperfect.
الصفحة 518 - This is dispensed ; and what surmounts the reach Of human sense I shall delineate so, By likening spiritual to corporal forms, As may express them best ; though what if earth Be but the shadow of heaven, and things therein Each to other like, more than on earth is thought...
الصفحة 278 - ... around. The beauty and novelty of such a scene in the animal kingdom, long arrested my attention, but after twenty-five minutes of constant observation, I was obliged to withdraw my eye from fatigue, without having seen the torrent for one instant change its direction, or diminish, in the slightest degree, the rapidity of its course. I continued to watch the same...
الصفحة 366 - ... of the size of an ordinary saucer. The shell, fixed within the stomach, was so placed as to divide it completely into two halves, so that the body, stretched tensely over, had become thin and flattened like a pancake.
الصفحة 328 - Consider their incredible numbers, their universal distribution, their insatiable voracity; and that it is the particles of decaying vegetable and animal bodies which they are appointed to devour and assimilate. Surely we must in some degree be indebted to those ever active invisible scavengers for the salubrity of our atmosphere.
الصفحة 260 - When a certain number of characters concur in the same organism, its title to be regarded as a " plant," or an " animal," may be readily recognised ; but there are very numerous living beings, especially those that retain the form of nucleated cells, which manifest the common organic characters, but are without the true distinctive superadditions of either kingdom. The animal kingdom is conveniently arranged under th« following primary groups, sub-kingdoms, or departments : — PROTOZOA, CUSLENTEKATA,...
الصفحة 405 - ... invisible. These animals are of a great variety of shapes and sizes, and in such prodigious numbers, that, in a short time, the whole surface of the rock appears to be alive and in motion. The most common...
الصفحة 45 - ... may be in focus and in the centre of the field of view. The other microscope, to which the object-glass to be examined is attached, is fixed, and so adjusted that the point of the same needle may be in focus in the centre of its field. The eye-piece of the latter is then removed, and a cap with a very small aperture is substituted, close to which a lamp is placed. It is evident that the rays transmitted by the aperture will pursue the same course in reaching the point of the needle as the visual...
الصفحة 599 - A critic fly, whose feeble ray scarce spreads An inch around, with blind presumption bold, Should dare to tax the structure of the whole. And lives the man, whose universal eye Has swept at once th...

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