206 HOW CROPS GROW. 
Taste I.—Br. 
1st Period, 6,358 lbs. avoirdupois. 
6 
2d as 10,603 <‘ : 
3d. ee 16,523 ‘* is 
4th ¢ 14,981‘ a 
Sth =“ 10,622“ & 
The Total Weights of Water and Dry Matter for all 
but the 2d Period—the material of which was accidentally 
lost—were : 
TaBLE II.—Br. , 
Dry Matter, Water, 
Tbs. av. per acre. Ibs, ay. per acre. 
1st Period, 1,284 5,074 
8d 4,383 12,240 
4th “* 5,427 14,983 
Sth =“ 6,886 3,736 
1.—From Tab. I it is seen: That the weight of the live 
crop is greatest at or before the time of blossom.* After 
this period the total weight diminishes as it had previously 
increased. 
2,—From Tab. II it becomes manifest: That the organic 
tissue (dry matter) continually increases in quantity up to 
the maturity of the plant; and 
3.—The loss after the 3d Period falls exclusively upon 
the water of vegetation. At the time of blossom the plant 
has its greatest absolute quantity of water, while its least 
absolute quantity of this ingredient is found when it is 
fully ripe. 
By taking the difference between the weights of any 
two Periods, we obtain: 
The Increase or Loss of Dry Matter and Water 
during each Period. 
TaBLe III.—Br. 
Dry Matter, Water, 
Ibs. per acre. ‘Ibs. per acre. 
1st Period, 1,284 Gain. 5,073: Gain. 
3d 3,099 * 7,166“ 
4th ‘“ 1,044 * 2,684 Loss, 
Sth = « 1,459 5,820 
* In Arendt’s Experiment, at the time of ‘‘ heading out,’ 8d Period, 
