A practical course in botany : with especial reference to its bearings on agriculture, economics, and sanitation . Figs. 65, 66. — Stem of bean seedling,measured to show region of growth: 65,early stage of growth ; 66, later stage. E5CPERIMENT 67Figs. 67,68.—Experiment show-ing the direction of growth in stems :67, young potato planted in an in-verted position ; 68, the same after§n ipterval of eight days. Can plants grow and lose weight at the sameTIME ? — Remove the scales from a whitelilj^ bulb, weigh them, and lay in a waiTn,but not too damp place, away from thelight. After a time bul
A practical course in botany : with especial reference to its bearings on agriculture, economics, and sanitation . Figs. 65, 66. — Stem of bean seedling,measured to show region of growth: 65,early stage of growth ; 66, later stage. E5CPERIMENT 67Figs. 67,68.—Experiment show-ing the direction of growth in stems :67, young potato planted in an in-verted position ; 68, the same after§n ipterval of eight days. Can plants grow and lose weight at the sameTIME ? — Remove the scales from a whitelilj^ bulb, weigh them, and lay in a waiTn,but not too damp place, away from thelight. After a time bulblets will form atthe bases of the scales. Weigh them again,and if there has been any loss, accountfor it. The experiment may be tried byallowing a potato tuber or a hyacinth bulbto germinate without absorbing moistureenough to affect its weight. Experiment 37. Is the direction of GROWTH A MATTER OP ANY IMPORTANCE ? — Plant in a pot suspended as shown inFig. 67, a healthy seedling of some kind,two or three inches high, so that theplumule shall point downward throughthe drain hole and the root upward intothe spjl. Watch the action of the stem
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