1920] 



SHU LL— SEEDS 



365 



showed marked and increasing depression, due to approaching 

 saturation. The split peas take up a considerably larger per- 

 centage of water than Xanthium seeds, and the intervals were con- 

 tinued until intake significant for the problem in hand had ceased. 



Fig. i. — Curves of moisture intake: lowest curves, 5, 20, and 35 , by Xanthium 

 seeds; upper curve, split peas, 20 ; horizontal lines show points of equal intake where 

 tangents were measured. 



The value of close time intervals, despite certain obvious disadvan- 

 tages, wall be indicated later in discussing the work of Brown and 

 Worley. 



The velocity of intake at any given moment has been calculated 

 from the tangents to the curves. By reference to fig. 1 it will be 



