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BOTANICAL GAZETTE [FEBRUARY 
. East, E. M., and Park, J.B.,Studies on si alee I. The behavior 
of self-sterile plants. Caeties 2:505-609. IQI7. 
GARNER, W. W., and ALLARD, H. A., Effect of the relative length of day 
and night and other factors of the environment on petite and reproduction 
in plants. — Agric. Research 18: 553-60 
* , Flowering and fruiting of plants as ni by the length of day. 
Year Book U.S. Dept. Agric. 1920 (pp. 377-40 
Kra J., and Kraysiit, H. R., oe and reproduction with 
special nates to the tomato. Oregon Exp. Sta. Bull. 149. 1918. 
ACHS, hep nga! Notizen. VII. Uber Wachsthumperioden 
und so chee Flora 7 —253. 
SETCHELL, W. A. "Saeed oo of the marine spermaphytes. 
Bull. Torr. Bot. Club 47: 563-570. 
Srrks, M. J., Stérilité, auto-incom apatibilité, et differenciation sexuelle 
ier Arch, Néerland. Sci. Exactes et Naturelles, B. 3: 205-234. 
7. 
‘ St tout, A. B., Further experimental studies on self-incompatibility in 
hecmaphroite plants. Jour. Genetics 9:85-129. 1920 
, Self- and cross-pollinations in Cichoriten 7 ssbvbois with reference to 
sterility tends N.Y. Bot. Gard. 6:333-454. 1916. 
