28 



Effect of Temperature 

 on Fate and Amount of Absorption, 



From the results of the last experiment it seems that 

 usually there is a slight variation in the rate of absorption 

 even where the temperature remains the same. 



In order to secure information regarding the part tempera- 

 ture plays in the rate and amount of absorption a series of 

 experiments was conducted. The seeds used were corn, peas, and 

 lupines (Lupinus luteus) , Five seeds of each kind were placed 

 together in each of five bottles containing distilled water 

 and one bottle placed in each of the following temperatures 

 which remained constant during the experiment 12, 19, 35, 37, 

 and 56 degrees. The first accompanying table (table 10) gives 

 the actual weights of each set of each kind of seeds at the 

 intervals indicated at the head of the column. Table 11 gives 

 the percentage of gain relative to the dry weight of those seeds 

 and presents some very interesting results. At the close of 

 the first four hours the corn showed an amount absorbed which 

 (with one exception: 19° ) stood in direct relation to the 

 temperatures: There is a difference of 16% between the extremes 

 of temperature. After forty four hours of soaking the amount 

 taken up still increases with the temperature with only one 

 exception and that now at 37 degrees. It will also be noted 



