Catechism of Agricultural Chemistry and Geology |
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Page 2
... greater in quantity ? A. In all vegetable substances , the organic part is very much the greater . It forms from 90 to 99 out of every 100 lbs . of their weight . Q. Of what elements does the organic part of plants consist ? A. The ...
... greater in quantity ? A. In all vegetable substances , the organic part is very much the greater . It forms from 90 to 99 out of every 100 lbs . of their weight . Q. Of what elements does the organic part of plants consist ? A. The ...
Page 2
... greater in quantity ? A. In all vegetable sub- stances , the organic part is very much the greater . It forms from 90 to 99 out of every 100 lbs . of their weight . Q. Of what elements does the organic part of plants consist ? A. The ...
... greater in quantity ? A. In all vegetable sub- stances , the organic part is very much the greater . It forms from 90 to 99 out of every 100 lbs . of their weight . Q. Of what elements does the organic part of plants consist ? A. The ...
Page 5
... greater number contain only three , viz . carbon , hydrogen , and oxygen . Q. Name some of the more common substances which contain only these three . A. Starch , gum , sugar , the fibre of wood , oils , and fats , contain only these ...
... greater number contain only three , viz . carbon , hydrogen , and oxygen . Q. Name some of the more common substances which contain only these three . A. Starch , gum , sugar , the fibre of wood , oils , and fats , contain only these ...
Page 13
... greater part of all kinds of wood , straw , hay , and chaff , of the shells of nuts , and of cotton , flax , hemp , & c . Q. What is starch ? A. Starch is a white powder , which forms nearly the whole substance of the potatoe , and ...
... greater part of all kinds of wood , straw , hay , and chaff , of the shells of nuts , and of cotton , flax , hemp , & c . Q. What is starch ? A. Starch is a white powder , which forms nearly the whole substance of the potatoe , and ...
Page 22
... greater crops of corn ? A. Yes , not only would it be more cheaply work- ed , but it would yield a greater number of bushels of wheat an acre than before . Q. Would this increase be sufficient to pay the cost of draining ? A. Yes , the ...
... greater crops of corn ? A. Yes , not only would it be more cheaply work- ed , but it would yield a greater number of bushels of wheat an acre than before . Q. Would this increase be sufficient to pay the cost of draining ? A. Yes , the ...
Common terms and phrases
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
Popular passages
Page 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...