140 MISSOURI BOTANICAL GARDEN BULLETIN 
NOTES 
Mr. G. H. Pring, Horticulturist to the Garden, gave the 
lecture ‘‘Collecting Orchids in South America’’ before the 
patrons’ associations of the Garfield School, December 4, and 
of the Fremont School, December 14. 
Recent visitors to the Garden include Mr. John T. Breg- 
ger, in charge of research department, Stark Bros. Nursery, 
Louisiana, Mo., December 2; Mr. Henry Atherton Lee, 
pathologist of the Hawaiian Sugar Planters’ Association, 
December 12; and Prof. A. T. Erwin, professor of horticul- 
ture, Iowa State College, December 13. 
Dr. B. M. Duggar, Physiologist to the Garden, will pre- 
sent a paper before the physiological section of the Botanical 
Society of America, December 28, at the meetings of the 
American Association for the Advancement of Science, at 
Cincinnati, on ‘‘Cell Activity and H-Ion Concentration— 
Some Problems in Metabolism and Absorption.”’ 
Dr. J. M. Greenman, Curator of the Herbarium, will pre- 
sent a paper before the systematic section of the Botanical 
Society of America, December 29, on ‘‘Age and Area with 
Special Reference to the Flora of Tropical America.”’ 
