Catechism of Agricultural Chemistry and GeologyW. Blackwood, 1844 - 48 sider |
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Side
James Finlay Weir Johnston. NOTHECT BIBLI BODI PRINTED BY STARK AND COMPANY , EDINBURGH . ΤΟ THE SCHOOLMASTERS AND TEACHERS OF GREAT BRITAIN AND IRELAND.
James Finlay Weir Johnston. NOTHECT BIBLI BODI PRINTED BY STARK AND COMPANY , EDINBURGH . ΤΟ THE SCHOOLMASTERS AND TEACHERS OF GREAT BRITAIN AND IRELAND.
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James Finlay Weir Johnston. ΤΟ THE SCHOOLMASTERS AND TEACHERS OF GREAT BRITAIN AND IRELAND . GENTLEMEN , HAVING written the present little work with a view to the more speedy improvement of the agriculture of our common country , I take ...
James Finlay Weir Johnston. ΤΟ THE SCHOOLMASTERS AND TEACHERS OF GREAT BRITAIN AND IRELAND . GENTLEMEN , HAVING written the present little work with a view to the more speedy improvement of the agriculture of our common country , I take ...
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... grow where only one grew before . " I have the honour to be , GENTLEMEN , Your obedient Servant , JAMES F. W. JOHNSTON . EDINBURGH , 1st February 1844 . ADVERTISEMENT . THE Author believes that the country teacher who.
... grow where only one grew before . " I have the honour to be , GENTLEMEN , Your obedient Servant , JAMES F. W. JOHNSTON . EDINBURGH , 1st February 1844 . ADVERTISEMENT . THE Author believes that the country teacher who.
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... teacher may consider most important , or most applicable to local practice . The other questions will be taken up on a second perusal , and an occasional general cate- chising upon the whole book will fix the matters treated of more ...
... teacher may consider most important , or most applicable to local practice . The other questions will be taken up on a second perusal , and an occasional general cate- chising upon the whole book will fix the matters treated of more ...
Side 2
... teacher will here exhibit a piece of charcoal and show how it burns in the fire , or in the flame of a candle . Q. What is hydrogen ? A. Hydrogen is a kind of air or gas which burns in the air as coal gas does , but in which a candle ...
... teacher will here exhibit a piece of charcoal and show how it burns in the fire , or in the flame of a candle . Q. What is hydrogen ? A. Hydrogen is a kind of air or gas which burns in the air as coal gas does , but in which a candle ...
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...