Elements of Agriculture

Front Cover
Macmillan, 1920 - Agriculture - 434 pages

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Page 346 - Then stop it and, with the pipette or other convenient means, add hot water to each bottle until the contents come up to the bottom of • the neck. Whirl two minutes. Add hot water enough to bring the top of the fat nearly to the top of the graduations on the neck of the bottles. Whirl one minute.
Page 345 - Remove the finger to allow the milk to flow into the bottle. Be sure to get every drop of the milk, taking care to drain the pipette and to blow the last drop into the bottle. A little practice should make anyone proficient with the pipette.
Page 219 - You are mighty poor Americans if your care for the well-being of this country is limited to hoping that that well-being will last out your own generation. No man here or elsewhere is entitled to call himself a decent citizen if he does not try to do his part toward seeing that our national policies are shaped for the advantage of our children and our children's children. Our country, we have faith to believe, is only at the beginning of its growth. Unless the forests of the United States can be made...
Page 346 - Pour this into the bottle with the milk, holding the bottle in a slanting position. The acid will then carry down any milk left in the neck and follow the glass surface to the bottom of the bottle and form a layer under the milk. Hold the bottle by the neck and give it a...
Page 345 - ... about one pint of sulfuric acid with specific gravity between 1.82 and 1.83, a few ounces of milk, and some hot water. All the necessary apparatus and acid can be purchased for about five dollars from any dairy supply company. They can be ordered through a hardware dealer. Sulfuric acid is sold also at drug stores. Sampling the milk. — The milk to be tested should be thoroughly mixed just before the sample is taken, to make sure that the fat or cream is evenly distributed. This can best be...
Page 404 - Department of Agriculture Weather Bureau Bureau of Animal Industry Bureau of Plant Industry Forest Service Bureau of Chemistry Bureau of Soils Bureau of Entomology Bureau of Biological Survey...
Page 403 - State agricultural colleges and experiment stations and the United States department of agriculture, to maintain and increase, where possible, the supply of dairy products.
Page 370 - ... nature how the first eggs laid for a brood are more pronounced in color, and how the color pigment decreases with each egg that is laid, due to exhaustion of the supply. 3. The content of a boiled egg.
Page 115 - We set the last spring some twenty acres of Indian corn, and sowed some six acres of barley and pease ; and according to the manner of the Indians, we manured our ground with herrings, or rather shads, which we have in great abundance, and take with great ease at our doors.
Page 218 - ... than those whose connection with it is obvious and direct. Wood is an indispensable part of the material structure upon which civilization rests; and it is to be remembered always that the immense increase of the use of iron and substitutes for wood in many structures, while it has meant a relative decrease in the amount of wood used, has been accompanied by an absolute increase in the amount of wood used. More wood is used than ever before in our history.

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