The Principles of Plant Culture: A Text for Beginners in Agriculture and Horticulture

Forsideomslag
Macmillan, 1916 - 295 sider
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Side 125 - ... the thermometers are quickly read and the difference in the readings noted. When the air is comparatively dry, evaporation from the muslin proceeds rapidly, and on account of the heat absorbed, the wet bulb indicates a lower temperature than the dry one. When the air is damp, evaporation is slower, and the difference between the readings of the two thermometers is less. In saturated air, evaporation ceases and the two thermometers read alike.
Side 13 - Agropyrum repens (a-gropy'-rum re'-pens), is the same in all languages and countries. Scientific names are usually Latin and consist of two words. The first word is the name of the genus to which the plant or animal belongs, and is called the generic (ge-ner'-ic) name; the second word designates the species, and is called the specific (spe-cif'-ic) name.
Side ii - Pippin and Buckman: SOILS; THEIR PROPERTIES AND MANAGEMENT. Mann: BEGINNINGS IN AGRICULTURE. Montgomery: THE CORN CROPS.

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