Catechism of Agricultural Chemistry and GeologyW. Blackwood, 1844 - 48 sider |
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Side 13
... gluten ? A. Gluten is a substance like bird - lime , which ex- ists , along with starch , in almost all plants . It may be obtained from wheaten flour , by making it into a dough , and washing it with water . The teacher will here mix ...
... gluten ? A. Gluten is a substance like bird - lime , which ex- ists , along with starch , in almost all plants . It may be obtained from wheaten flour , by making it into a dough , and washing it with water . The teacher will here mix ...
Side 14
... gluten behind , and how , after a time , the starch set- tles at the bottom of the water , in the form of a white powder . Q. Which of these three substances is usually most A. The woody fibre is the most abundant in nearly all plants ...
... gluten behind , and how , after a time , the starch set- tles at the bottom of the water , in the form of a white powder . Q. Which of these three substances is usually most A. The woody fibre is the most abundant in nearly all plants ...
Side 16
... gluten consist ? A. Gluten consists of all the four elements - car- bon , hydrogen , oxygen , and nitrogen - united to- gether . Q. Can the plant derive from the air all the ele- ments of which gluten consists ? A. No , it can obtain ...
... gluten consist ? A. Gluten consists of all the four elements - car- bon , hydrogen , oxygen , and nitrogen - united to- gether . Q. Can the plant derive from the air all the ele- ments of which gluten consists ? A. No , it can obtain ...
Side 37
... gluten and other substances containing nitrogen are formed by the aid of this ammonia . Q. Is this ammonia , then , a very important ingre- dient in the manures ? A. Yes , because nitrogen , in some shape or other , is absolutely ...
... gluten and other substances containing nitrogen are formed by the aid of this ammonia . Q. Is this ammonia , then , a very important ingre- dient in the manures ? A. Yes , because nitrogen , in some shape or other , is absolutely ...
Side 47
... gluten , and oil or fat . Q. What proportion of each of these usually ex- ists in wheat ? A. 100 lbs . of wheat flour contain about 50 lbs . of starch , 10 lbs . of gluten , and 2 or 3 lbs . of oil . Q. In what proportion do they exist ...
... gluten , and oil or fat . Q. What proportion of each of these usually ex- ists in wheat ? A. 100 lbs . of wheat flour contain about 50 lbs . of starch , 10 lbs . of gluten , and 2 or 3 lbs . of oil . Q. In what proportion do they exist ...
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...