ما يقوله الناس - كتابة مراجعة
لم نعثر على أي مراجعات في الأماكن المعتادة.
طبعات أخرى - عرض جميع المقتطفات
appearance beautiful become better boiler border Botanic bottom branches buds bulbs called cause collection colour common considered containing covered cultivation effect England experience flowers fruit garden give given glass green ground growing grown growth hardy heat Hort Horticultural improvement increase injured interesting Italy keep killed kind late latter leaves less light Lindl London manner March means mode nature nearly never notice Nursery object observed pipes plants pots practice present produced prove quantity raised received remarkable require roots season seeds seen sent shoots shrubs side situation Society Society's soil soon sorts species specimens spring stem surface taken temperature trees varieties vegetable walk wall whole winter wood young
الصفحة 95 - Tenant's Right of Entering and Quitting Farms, explained by several Specimens of Valuations ; with Remarks on the Cultivation pursued on Soils in different Situations. Adapted to the Use of Landlords, Land-Agents, Appraisers, Farmers, and Tenants. New Edition ; corrected and revised by JOHN DONALDSON.
الصفحة 329 - Bodens, undertakes to be a courier. Indeed, Tom, you have betrayed yourself too soon ! Mr. Grenville, your friend, your patron, your benefactor, who raised you from a depth, compared to which even Bradshaw's family stands on an eminence, was hardly cold in his grave, when you solicited the office of go-between to Lord North. You could not, in my eyes, be more contemptible, though you were convicted (as I dare say you might be) of having constantly betrayed him in his lifetime. Since I know your employment,...
الصفحة 93 - Theory and Practice of Horticulture ; or, an Attempt to explain the principal Operations of Gardening upon Physiological Grounds: Being the Second Edition of the Theory of Horticulture, much enlarged ; with 98 Woodcuts.
الصفحة 303 - Not so when plants in the open air are artificially watered. This operation is usually performed in hot dry weather, and must necessarily be very limited in its effects ; it can have little if any influence upon the atmosphere : then, the parched air robs the leaves rapidly of their moisture, so long as the latter is abundant; the roots are suddenly and violently excited, and after a short time the exciting cause is suddenly withdrawn, by the momentary supply of water being cut off by evaporation,...
الصفحة 302 - For some days, the only apparent difference was that the earth continued damp under the green and blue fluids, whereas it rapidly dried under the red and yellow. The plumula burst the cuticle in the blue and green lights, before any change was evident in the other parts. After ten days, under the blue fluid there was a crop of cress, of as bright a green as any which grew in full light, and far more abundant.
الصفحة 632 - Humus acts in the same manner in a soil permeable to air as in the air itself; it is a continued source of carbonic acid, which it emits very slowly. An atmosphere of carbonic acid, formed at the expense of the oxygen of the air, surrounds every particle of decaying humus. The cultivation of land, by tilling and loosening the soil, causes a free and unobstructed access of air. An atmosphere of carbonic acid is therefore contained in every fertile soil, and is the first and most important food for...
الصفحة 564 - Histoire des Insectes nuisibles à la Vigne, et particulièrement de la Pyrale.
الصفحة 220 - This mode of life gave health and vigour to my body, and amusement and instruction to my mind ; and to this day I well remember the delicious sleep which succeeded my labours, from which I was again called at an early hour. If I were now asked whom I consider to be happiest of the human race, I should answer, those who cultivate the earth by their own hands.
الصفحة 509 - In considering the various circumstances alluded to in this paper, I was naturally led to inquire into the exact manner in which the death of plants is caused by cold. Very little, however, is to be learned upon this subject from the writings of physiologists. " The common opinion is, that frost acts mechanically upon the tissue of plants, by expanding the fluid they contain, and bursting the cells or vessels in which it is enclosed.
الصفحة 514 - ... power of conducting heat, and consequently augment the susceptibility of plants to the influence of frost; and whatever tends to diminish their humidity, will also diminish their conducting power, and with it their susceptibility ; this is an invariable law, and must consequently be regarded...