Catechism of Agricultural Chemistry and Geology |
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Page 13
... woody - fibre , starch , and gluten . Q. What is woody fibre ? A. Woody fibre is the substance which forms the greater part of all kinds of wood , straw , hay , and chaff , of the shells of nuts , and of cotton , flax , hemp , & c . Q ...
... woody - fibre , starch , and gluten . Q. What is woody fibre ? A. Woody fibre is the substance which forms the greater part of all kinds of wood , straw , hay , and chaff , of the shells of nuts , and of cotton , flax , hemp , & c . Q ...
Page 14
... woody fibre is the most abundant in nearly all plants . Q. In what part of the plant is the starch found most plentifully ? A. The starch is found most abundantly in the seeds of plants , and in the roots of such as resemble the potatoe ...
... woody fibre is the most abundant in nearly all plants . Q. In what part of the plant is the starch found most plentifully ? A. The starch is found most abundantly in the seeds of plants , and in the roots of such as resemble the potatoe ...
Page 15
... wood , coal , candles , & c . since the carbon which wood contains , when it burns in the air , forms carbonic acid gas ... Woody fibre , starch , gum , and sugar consist of carbon and water only , of what does water itself con- sist ? A ...
... wood , coal , candles , & c . since the carbon which wood contains , when it burns in the air , forms carbonic acid gas ... Woody fibre , starch , gum , and sugar consist of carbon and water only , of what does water itself con- sist ? A ...
Page 16
... woody fibre . Q. Of what elements , then , do all these substances consist ? A. They consist of carbon , hydrogen , and oxygen . The teacher may take this opportunity of explain- ing more particularly the word elements , contrasting the ...
... woody fibre . Q. Of what elements , then , do all these substances consist ? A. They consist of carbon , hydrogen , and oxygen . The teacher may take this opportunity of explain- ing more particularly the word elements , contrasting 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...