176 
Pacheco Leao, Jardim Botanico, Rio de Janeiro, Brazil. 
Daniel McAlpine, formerly Plant Pathologist, Victoria; Croydon, 
Victoria, Australia. 
Kingo Miyabe, Hokkaido Imperial University, Sapporo, Japan. 
Hermann Miiller-Thurgau, Versuchsanstalt fiir Obst-, Wein-, 
und Gartenbau, Wadenswil, Schweiz. 
S. G. Nawaschin, Timiriasev Federal Institute of Scientific Re- 
search, Moscou, U. S. S. R. 
David Prain, formerly Director, Royal Botanic Gardens, Kew; 
Well Farm, Warlingham, England. 
Arrigi Serpieri, Reale Istituto Superiore Forestale Nazionale, 
Firenze, Italia. 
Richard Wettstein, Botanischer Garten und Institut, Wien, 
Oesterreich. 
Emile de Wildeman, Jardin Botanique de l’Etat, Bruxelles, 
Belgique. 
Vice-Chairman 
John Merle Coulter, Boyce Thompson Institute for Plant Re- 
search, Yonkers, New York. 
General Secretary 
Benjamin Minge Duggar, National Research Council, Washing- 
ton, 
Treasurer 
George Thomas Moore, Missouri Botanical Garden, St. Louis, 
Missouri. 
About 9oo delegates were present from about twenty-five foreign 
countries, including all the larger nations except France, and from 
many of the smaller countries, and with rare exceptions, the 
papers (about 230 in all) were presented in the English language. 
The Association of Official Seed Analysts of South America 
held its nineteenth annual meeting in affiliation with the Congress, 
and invitations to this meeting were extended to the chief analysts 
or directors of the Official Testing Stations in Holland, Germany, 
Denmark, and Great Britain. In the ten invitation papers the 
following topics were represented: The botany of seed testing; 
Research work in seed analysis; Germination testing, including 
Physiological problems, Legislation, and Seed control. Cornell 
