Catechism of Agricultural Chemistry and GeologyW. Blackwood, 1844 - 48 sider |
Inni boken
Resultat 1-5 av 9
Side
... whole subject to be found in any language . " - Blackwood's Magazine . " The most complete account of Agricultural Chemistry we possess . " - Royal Agr . Jour . " A valuable and interesting course of Lectures . " - Quarterly Review . IV ...
... whole subject to be found in any language . " - Blackwood's Magazine . " The most complete account of Agricultural Chemistry we possess . " - Royal Agr . Jour . " A valuable and interesting course of Lectures . " - Quarterly Review . IV ...
Side
... whole book will fix the matters treated of more firmly in the minds of his scholars . The teacher himself will find further information in the Author's Elements and published Lectures on Agricultural Chemistry and Geology ; and any ...
... whole book will fix the matters treated of more firmly in the minds of his scholars . The teacher himself will find further information in the Author's Elements and published Lectures on Agricultural Chemistry and Geology ; and any ...
Side 13
... whole substance of the potatoe , and exists in large proportion in oat - meal , in wheaten flour , and in the flour of other kinds of grain cultivated for food . Q. What is gluten ? A. Gluten is a substance like bird - lime , which ex ...
... whole substance of the potatoe , and exists in large proportion in oat - meal , in wheaten flour , and in the flour of other kinds of grain cultivated for food . Q. What is gluten ? A. Gluten is a substance like bird - lime , which ex ...
Side 15
... whole of the small proportion of carbonic acid it con- tains ? A. No , because new supplies of this gas are con- tinually returning into the air . Q. Whence do those supplies come ? A. They come from three sources ; first , from the ...
... whole of the small proportion of carbonic acid it con- tains ? A. No , because new supplies of this gas are con- tinually returning into the air . Q. Whence do those supplies come ? A. They come from three sources ; first , from the ...
Side 17
... whole weight , but of rich and fertile soils it does not form more than from a twentieth to a tenth of the whole weight . Q. Can a soil bear good crops which does not contain a considerable proportion of organic matter ? A. Not in our ...
... whole weight , but of rich and fertile soils it does not form more than from a twentieth to a tenth of the whole weight . Q. Can a soil bear good crops which does not contain a considerable proportion of organic matter ? A. Not in our ...
Vanlige uttrykk og setninger
AGRICULTURAL CHEMISTRY ammonia animal require applied bone-earth bones burns called carbon and water carbonic acid gas CHEMISTRY AND GEOLOGY Chlorine clover common salt compost consist of carbon contain cow-dung crops cwts draining dung earth EDINBURGH employed fall to powder farm-yard manure farmer fattening fermentation fertile give gluten grass lands grow guano gypsum hydrogen inorganic kind of air large quantity leaves LECTURES ON AGRICULTURAL light lands lighted taper limestone liquid magnesia marl mixed nitrogen oats obtain oil of vitriol organic food organic matter oxide of iron oxygen gas phosphate of lime phosphoric acid plants require potash potatoes produced profit proportion pupils quicklime roots sea-weed shell sand Silica slaked smell soda soil consists sour starch straw subsoil substances sulphuric acid supply taste teacher may exhibit teacher may illustrate teacher will show turnip usually vegetable waste wheat white fumes wood woody fibre
Populære avsnitt
Side 17 - Q. Whence is the organic part of the soil derived? A. It is derived from the roots and stems of decayed plants, and from the dung and remains of animals and insects of various kinds. Q. Does this organic part form a large proportion of the soil ? A. Of peaty soils it forms sometimes three-fourths of the whole weight; but of rich and fertile soils it does not usually form more than from a twentieth to a tenth of the whole weight. Q. Can a soil bear good crops which does not contain a considerable...