On the afternoon of October 26, I began the examination of 
Dr. Patouillard’s private herbarium at Neuilly, a suburb of Paris, 
in which work Dr. Patouillard gave me valuable aid and many 
helpful suggestions. Besides other valuable material, this her- 
barium contains the types of many species described from the 
comparatively recent collections of Duss in Guadeloupe, which 
are of the greatest importance in the study of tropical American 
fungi. I was glad to find that these types are much better 
Fic. 15. Famous beech trees in the Royal Gardens at Kew, England. 
preserved than most of the Duss specimens seen elsewhere. A 
collection of drawings of Mexican fungi made by Paul Maury 
proved to be of unusual interest, but, unfortunately, nearly all 
of the specimens from which they were made were lost. Dr. 
Patouillard is one of the great exponents of the extensive use of 
the microscope in taxonomic study, and his herbarium aboundsin 
drawings, measurements, and other useful results of such study. 
