TABLE OF CONTENTS 
NuMBER 1 (September 8, 1947) 
PAGE 
Studies in the Genus Hevea I 
By Ricuarp Evans SCHULTES ....... | 
An Erroneous Record of Hevea in Colombia 
By A. H. G. Aston anp Ricuarp Evans 
SCHULTES ............... 212 
NuMBER 2 (November 19, 1947) 
Commentaries on Spiranthes I 
By Oakes AMES ............. #2197 
NuMBER 8 (December 29, 1947) 
Chicha, A Native South American Beer 
By Hueu C. Cur.Ler ann Martin CARDENAS 33 
NuMBER 4 (July 27, 1948) 
Vascular Anatomy of Orchid Flowers 
Bye. ds SWAMY 3. Sis Goa et ww eC 
NuMBER 5 (October 20, 1948) 
Studies in the Genus Hevea II 
By Ricoarp Evans ScHuurEs ....... 97 
NuMBER 6 (November 24, 1948) 
Notes on Orchids of the American Tropics 
By CHARLES SCHWEINFURTH ...... . . 188 
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