47 



six millimeters. Immediately upon closing the bottle the sur- 

 face of the water in the tube stood at a considerable distance 

 above the cork; this position was marked as the starting point 

 of the experiment. As the water rose or fell in the tubes the 

 readings were taken every few minutes as given in Table 14, As 

 a control for determining the rise and fall in the tube due to 

 changes in temperature only, one bottle contained no seeds. 



The numbers given in the table represent the change of vol- 

 ume in cubic centimeters. The numbers preceeded by the sign - 

 show that the volume is less than at the beginning of the ex- 

 periment; all other numbers represent the increase over the 

 first reading. These tabulated results are represented in the 

 form of curves, See curve I, 



whatever change of volume occurs in the vessel containing 

 water only must be due to a change in temperature and the 

 change in temperature would not be less in the other vessels, 



A glance at the table or curves shows that no increase in 

 the volume of the water took place within the first two hours. 

 During the next six hours there was a slow but constant in- 

 crease, the maximum being ,78 cc. After this there was a de- 

 crease. In the corn, peas, and black beans there was an in- 

 crease from the first but in the peas there was a change after 

 thirty minutes. There was no change in the lupines for a con- 

 siderable time and in the first four hours the increase amount- 



