Catechism of Agricultural Chemistry and Geology |
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Page 6
... meaning of the word alkaline as applied to taste . Q. What is soda ? A. The common soda of the shops is a glassy or crystallized substance , which has also an alkaline taste , but which , unlike potash , becomes dry and powdery by being ...
... meaning of the word alkaline as applied to taste . Q. What is soda ? A. The common soda of the shops is a glassy or crystallized substance , which has also an alkaline taste , but which , unlike potash , becomes dry and powdery by being ...
Page 17
... meaning of the new word carbonaceous . Q. Whence is the organic part of the soil derived ? A. It is derived Fig . 12 . from the roots and stems of decayed plants , and from the dung and remains of animals and insects of va- rious kinds ...
... meaning of the new word carbonaceous . Q. Whence is the organic part of the soil derived ? A. It is derived Fig . 12 . from the roots and stems of decayed plants , and from the dung and remains of animals and insects of va- rious kinds ...
Page 23
... meaning of the new words dissolve and solution — showing how salt and sugar melt away or dissolve in water , forming clear solu- tions of salt or sugar in which these substances can be recognized only by the sense of taste - but from ...
... meaning of the new words dissolve and solution — showing how salt and sugar melt away or dissolve in water , forming clear solu- tions of salt or sugar in which these substances can be recognized only by the sense of taste - but from ...
Page 46
... , I would apply smaller doses at the end of each rotation , or at the end of every second rotation , to keep up the quantity of lime in the land . The teacher may here explain the meaning of the new 46 CATECHISM OF AGRICULTURAL.
... , I would apply smaller doses at the end of each rotation , or at the end of every second rotation , to keep up the quantity of lime in the land . The teacher may here explain the meaning of the new 46 CATECHISM OF AGRICULTURAL.
Page 47
James Finlay Weir Johnston. The teacher may here explain the meaning of the new word rotation , and may illustrate it by reference to the course of cropping in his own or neighbouring dis- tricts ; and if he make himself master of the ...
James Finlay Weir Johnston. The teacher may here explain the meaning of the new word rotation , and may illustrate it by reference to the course of cropping in his own or neighbouring dis- tricts ; and if he make himself master of 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...