STUDIES IN POLLEN, WITH SPECIAL REFERENCE TO LONGEVITY 793 
TimcHEM, Pu. van. Recherches physiologiques sur la végétation libre du 
pollen et de l’ovule et sur la fécondation directe des plantes. Ann. sci. 
nat. bot. 5:12:312-339. 1869. 
Toxuaawa, Y. Zur Physiologie des Pollens. (Cited in Genetics 3:366. 
1918.) Imp. Univ. Tokyo, Coll. Sci. Journ. 35:1-53. 1914. 
Truoe, E. Methods for the determination of carbon dioxide and a new 
form of absorption tower adapted to the titrimetric method. Journ. 
indus. and engin. chem. 7: 1045-1049. ‘1915. 
Waits, JEAN. The ferments and latent life of resting seeds. Roy. Soc. 
London. Proc. 81 B:417-442. 1909. 
Memoir 42, Bean Anthracnose, thetenth preceding number in this series of publications, was mailed on 
January 30, 1922. 
Memoir 43, Variations in Bacteria Counts from Milk as Affected by Media and Incubation Temperature, 
was mailed on November 10, 1921. 
Memoir 44, Attachment of the Abdomen to the Thorax in Diptera was mailed on December 30, 1921. 
Memoir 45, The botrytis Blight of Tulips, was mailed on January 30, 1922. 
