1914] 



DA RSI E, ELLIOTT &• PEIRCE— GERMINATING POWER 



.19 



the weights of the two samples and a correspondingly steeper curve, 

 the difference in these two curves is indicative of the difference in 

 the cleanliness, and the corresponding goodness of the two sets or 

 lots of seeds. It is to be noted, also, that both sets of seeds in this 



24 



21 



18 





























II 1 1 





1 1911 









































°c 





































































































^^H 















pH 



190* 





































«.-" 



— m.^_ 







i 





^^^^^^^^^ 









_,^ - 



- - 



- — 



-~~ 



— ** 

































































1 1 



Hours 



* 





30 



60 



90 



120 



150 



180 



Fig. 9.- — Oats (experiment VI) : 20 grams; broken line, 1904; solid line, 191 1 



Fig. 10. — Oats (no. 339): 30 grams; broken line, 1907; solid line, 191 1 



latter test were badly infected with mold. Of the 1907 seeds less 

 than half had germinated; but the 191 1 seeds showed nearly 100 

 per cent germination. 



With these records, which show the behavior of certain varieties 

 of oats during the winter following the summer in which they grew, 



