WEDNESDAY EVENING 
At 8:15 O'clock 
SCIENTIFIC PROGRAM 
Presiding: DR. WILLIAM CROCKER, 
13 
2 
“. 
$k 
4. 
Director, Boyce Thompson Institute for Plant Research. 
Chairman, aaae reas of Biology and Agriculture, National Research 
Council, 1927-1 
Vice- cy a as c lairman of Section G oe otany), American Asso- 
ciation for the Advancement of Science, 192 
Twenty-five Years of Plant Pathology, 1910-1935. 
PROF. L. R. JONES, 
Protessor of Plant Pathology, University of Wisconsin, 
Vice-chairman, Division of Biology and Agriculture, National Re- 
search Council, 1921-1922 
1e Ent Botanical Society nei America, 1913, 
President, Section of Mycology and Plant Pathology, 5th International 
Botanical pete Cambridge, 1930. 
Twenty-five Years of Systematte Botany, 1910-1935, 
DR. sei ile D. MERRILL, 
Director, New York Botanical Garden. 
President, Section of Systematic Botany, 6th International Botanical 
Congress, Amsterdam, ie 
Member, National Academy oi Sciences. 
Twenty-five Years of Paleobotany, 1910-1935, 
DR. G. R. WIELAND, 
Associate Carnegie Institution of Washington. 
Associate Professor of Paleobotany, Yale University. 
Archduke Rainer (Vienna ) Gold Medalist, 1914. 
Vice-president, Section of Paleobotany, 5th International Botanical Con- 
gress, Cambridge, 1930. 
Motion Picture (Silent). The Lite Cycle of a Fern. 2 Reels, 35 mm, 
iurvard Film. Premier Showing. 
