The Plant World Volume 14

The Plant World Volume 14

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ... most popular issues of 1910, as follows: March--Bird Study (with 18 photographs). April--Garden Number. May--Rural Number (with 2 colored plates of birds). September--Insect Studies (copious illustrations, in-cluding color plate of American butterflies). November--Harvest Studies. December--Weather Studies. Subscription: $1.00 per year (This covers membership in the American Nature-Study Society). Canadian postage, 10c extra; Foreign, 20c. Single Copy 15 c. Address: NATURE-STUDY REVIEW, Urbana, 111. BE SURE TO VISIT ROSSI'S CAFE WHEN YOU ARE IN TUCSON ATMOMETER Is the most simple and efficient instrument ever devised for the measurement of evaporation. Its readings are a measure of the combined effect of humidity, temperature, and wind, and as such are of great value in all kinds of botanical, agricultural, and horticultural operations which require an estimation of the differences in these factors as affecting plant growth in different situations. Its installation requires only the use of a jar, corks and tubing as shown in the accompanying figure. The atmometer may also be used to maintain high humidities in experimental work; to provide a constantly moist surface for germinating spores or growing algae, fungi and protonemata. When immersed in the soil and fed with water by tubing.the atmometer cup is capable of maintaining constant degrees of soil moisture, either in the open or in pots and greenhouses, the degree of moistness being determined by the height of the supplying reservoir above the soil. This type of atmometer cup was devised by Dr. Burton E. Livingston, Professor of Plant Physiology in Johns Hopkins University, and its adjustment, operation and scope of usefulness have been treated in the following articles in THE more

Product details

  • Paperback | 28 pages
  • 189 x 246 x 2mm | 68g
  • United States
  • English
  • black & white illustrations
  • 1236824989
  • 9781236824981