Pr.ATK XVI 



Plants (jTowii from trraiiis of Zca »/a/s immersed in kerosene from February 6. 1900. to 

 February 6, l'il4. On removal from the kerosene the g'rains were I'leared of superficial oil 

 by means of absorptive towels, and then washed vigorously for five minutes in chloroform 

 and exposed to dry air at room temperature for five days. They were planted February 11, 

 1914, and this pbotograph was taken April 22, 1914. 



