. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 236 Figs. 235, 236.—Horse-chestnut leaves: 235, leaf rosette seen from above; 236, the same seen sidewise, showing the formation of rosettes by the lengthening of the lower petioles. blossoms to face the sun. If you live where cotton is grown, notice the leaves in a field about ten o'clock on a bright sunny morning, and again from the same point of view at about four or five in the afternoon. Do you perceive any differ- ence in their general dis- position? Watch on a cloud
. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 236 Figs. 235, 236.—Horse-chestnut leaves: 235, leaf rosette seen from above; 236, the same seen sidewise, showing the formation of rosettes by the lengthening of the lower petioles. blossoms to face the sun. If you live where cotton is grown, notice the leaves in a field about ten o'clock on a bright sunny morning, and again from the same point of view at about four or five in the afternoon. Do you perceive any differ- ence in their general dis- position? Watch on a cloudy day and see if any change takes place. Find out by observation whether the " heliotrope " of the hothouses is really heliotropic. 199. Adjustment against too great intensity of light. — Plants fre- Figs. 238, 239.—a quently have to protect ^(SfiS^ S- t , themselves against excess aiwm'): 23s. seen from Fig. 237. —Leaf J the east; 239, seen pyramid of mullein. 01 light and heat. An from the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Andrews, Eliza Frances, b. 1840; Lloyd, Francis Ernest, 1868-1947. ed. New York, Cincinnati [etc. ] American book company
Size: 954px × 2618px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorand, bookcentury1900, bookdecade1910, booksubjectbotany
