Catechism of Agricultural Chemistry and Geology |
From inside the book
Results 1-5 of 28
Page
... PLANTS - is com- pleted , price 68 . PART II . ON THE INORGANIC CONSTITUENTS OF PLANTS , price 4s . 6d . PART III . - ON THE IMPROVEMENT OF THE SOIL BY MECHANICAL MEANS AND BY MANURES , price 7s . 6d . PART IV . - In course of ...
... PLANTS - is com- pleted , price 68 . PART II . ON THE INORGANIC CONSTITUENTS OF PLANTS , price 4s . 6d . PART III . - ON THE IMPROVEMENT OF THE SOIL BY MECHANICAL MEANS AND BY MANURES , price 7s . 6d . PART IV . - In course of ...
Page 2
... plants consist ? A. The organic part of plants consists of four elements , known by the names of carbon , hydrogen , oxygen , and nitrogen . Q. What is carbon ? A. Carbon is a solid substance , usually of a black colour , which has no ...
... plants consist ? A. The organic part of plants consists of four elements , known by the names of carbon , hydrogen , oxygen , and nitrogen . Q. What is carbon ? A. Carbon is a solid substance , usually of a black colour , which has no ...
Page 2
... plants consist ? A. The organic part of plants consists of four ele- ments , known by the names of carbon , hydrogen , oxygen , and nitrogen . Q. What is carbon ? A. Carbon is a solid substance , usually of a black colour , which has no ...
... plants consist ? A. The organic part of plants consists of four ele- ments , known by the names of carbon , hydrogen , oxygen , and nitrogen . Q. What is carbon ? A. Carbon is a solid substance , usually of a black colour , which has no ...
Page 5
... plant consist ? A. The inorganic part of plants contains from eight to ten different substances , namely , potash , soda , lime , magnesia , oxide of iron , silica , chlorine , sul- phuric acid , or oil of vitriol , and phosphoric acid ...
... plant consist ? A. The inorganic part of plants contains from eight to ten different substances , namely , potash , soda , lime , magnesia , oxide of iron , silica , chlorine , sul- phuric acid , or oil of vitriol , and phosphoric acid ...
Page 9
... plants ? A. Yes , they are to be found in the ash of all our usually cultivated plants . Q. Do all plants leave the same quantity of ash when burned ? A. No. Some leave much more ash than others . Thus 100 lbs . of hay leave 9 or 10 lbs ...
... plants ? A. Yes , they are to be found in the ash of all our usually cultivated plants . Q. Do all plants leave the same quantity of ash when burned ? A. No. Some leave much more ash than others . Thus 100 lbs . of hay leave 9 or 10 lbs ...
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...