Catechism of Agricultural Chemistry and GeologyW. Blackwood, 1844 - 48 sider |
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Side 2
... nitrogen . Q. What is carbon ? A. Carbon is a solid substance , usually of a black colour , which has no taste or smell , and burns more or less readily in the fire . Wood - charcoal , lampblack , coke , and black - lead , are varieties ...
... nitrogen . Q. What is carbon ? A. Carbon is a solid substance , usually of a black colour , which has no taste or smell , and burns more or less readily in the fire . Wood - charcoal , lampblack , coke , and black - lead , are varieties ...
Side 2
... nitrogen . Q. What is carbon ? A. Carbon is a solid substance , usually of a black colour , which has no taste or smell , and burns more or less readily in the fire . Wood - charcoal , lamp- black , coke , and black - lead , are ...
... nitrogen . Q. What is carbon ? A. Carbon is a solid substance , usually of a black colour , which has no taste or smell , and burns more or less readily in the fire . Wood - charcoal , lamp- black , coke , and black - lead , are ...
Side 5
... nitrogen ? A. Nitrogen is also a kind of air differing from both of the other two . Like hydrogen , a taper will not burn nor will an animal live in it , but unlike hy- drogen , it will not burn , and it does not take fire when brought ...
... nitrogen ? A. Nitrogen is also a kind of air differing from both of the other two . Like hydrogen , a taper will not burn nor will an animal live in it , but unlike hy- drogen , it will not burn , and it does not take fire when brought ...
Side 11
... nitrogen gases . Five gallons of air contain about four of nitrogen and one of oxygen , but in 5000 gallons of air there is only 1 gallon of carbonic acid gas . Q. Do plants drink in much carbonic acid from the air ? A. Yes , they drink ...
... nitrogen gases . Five gallons of air contain about four of nitrogen and one of oxygen , but in 5000 gallons of air there is only 1 gallon of carbonic acid gas . Q. Do plants drink in much carbonic acid from the air ? A. Yes , they drink ...
Side 16
... nitrogen , which cannot be separated or split up into more than one kind of matter , with such compound bodies as ... nitrogen - united to- gether . Q. Can the plant derive from the air all the ele- ments of which gluten consists ? A. No ...
... nitrogen , which cannot be separated or split up into more than one kind of matter , with such compound bodies as ... nitrogen - united to- gether . Q. Can the plant derive from the air all the ele- ments of which gluten consists ? A. No ...
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...