The American Quarterly Journal of Agriculture and Science, 1. cilt1845 |
Diğer baskılar - Tümünü görüntüle
Sık kullanılan terimler ve kelime öbekleri
agriculture albumen alkalies Alumina ammonia animal appear atmosphere blood body buds butter carbonic acid caseine cause Cecidomyia cent chemistry churned climate clover color composition constitution contain corn cream crop cultivation decomposition disease drain earth effect elements exist experiments fact farm farmer fertility fibrin free martin fungus furnish gall grain grass grow growth heat hydrogen important inch inorganic insects kind land larva larvæ leaves Liebig lime magnesia malic acid manure ment milk mucilage nature New-York nitrogen nutrition observed organic matter oxalic acid oxygen phosphate of lime phosphates Phosphoric acid plants ploughing portion potash potassa potatoe practical principles produced proportion proximate principles quantity require rice river closed rocks roots salts season seed Silica silk soda soil soluble species starch straw substances sugar Sulphate supply surface temperature tion tissues trees vegetable weight wheat whole winter worms
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Sayfa 227 - Knowledge and wisdom, far from being one, Have oft-times no connection. Knowledge dwells In heads replete with thoughts of other men ; Wisdom in minds attentive to their own.
Sayfa 283 - And he set three days' journey betwixt himself and Jacob : and Jacob fed the rest of Laban's flocks. And Jacob took him rods of green poplar, and of the hazel and chesnut tree ; and pilled white strakes in them, and made the white appear which was in the rods. And he set the rods which he had pilled before the flocks in the gutters in the watering troughs when the flocks came to drink, that they should conceive when they came to drink. And the flocks conceived before the rods, and brought forth cattle...
Sayfa 199 - ... the more nearly do they approach perfection. Even in the utmost refinements of his luxury, and in his choicest delicacies, the same great principle is attended to; and. his sugar and flour, his eggs and butter, in all their various forms and combinations, are nothing more or less, than disguised imitations of the great alimentary prototype MILK, as furnished to him by nature.
Sayfa 71 - A Treatise on the Forces which produce the Organization of Plants. With an Appendix, containing several Memoirs on Capillary Attraction, Electricity, and the Chemical Action of Light.
Sayfa 355 - Fisher's Island, pulling out the ruins of one hundred sheep, out of one snow bank in a valley, (where the snow had drifted over them sixteen feet) found two of them alive in the drift, which had lain on them all that time, and kept themselves alive by eating the wool off the others, that lay dead by them : As soon as they were taken out of the drift they shed their own fleeces and are now alive and fat ; and I saw them at the island the last week, and they are at your service.
Sayfa 73 - Gravity, cohesion, elasticity, the agency of the imponderables, and all other powers which operate both on masses and atoms, are called into action, and hence it is that the very evolution of a living form depends on the condition that all these various agents conspire.
Sayfa 79 - A physical principle has been put-forth" by Prof. Draper,' which seems quite adequate to explain these phenomena. — It appears fully capable of proof, that " if two liquids communicate with one another in a capillary tube, or in a porous or parenchymatous structure, and have for that tube or structure different chemical affinities, movement will ensue ; that liquid which has the most energetic affinity will move with the greatest velocity, and may even drive the other liquid before it.
Sayfa 21 - The evident influence of gypsum upon the growth of grasses — the striking fertility and luxuriance of a meadow upon which it is strewed — depends only upon its fixing in the soil the ammonia of the atmosphere, which would otherwise be volatilised, with the water which evaporates.
Sayfa 155 - This not merely promotes their growth and feeding, but (so far as the experience of five or six years can determine the point) seems a specific against blackleg, which was often so fatal as altogether to deter many farmers from breeding. It may be well to state here distinctly the particular purpose for which cake is given at the different stages of their growth.
Sayfa 149 - ... of age. They were examined, in the first instance, by the inspector of schools, in grammar, geography, and arithmetic ; and scarcely a single question did they fail to answer correctly. They were then examined, by an agricultural professor, in the scientific branches, and by two practical farmers in the practical departments of agriculture. Their acquaintance with these was alike delightful and astonishing. They detailed the chemical constitution of the soil and the effect of manures, the land...