166 NOTES AND COMMENT 



The Missouri Botanical Garden has issued the first number of its 

 new quarterly; series of Annals, a journal which is to contain papers 

 by members of the staff of the Garden and by students in the Shaw 

 School of Botany of Washington University. A Bulletin will be issued 

 monthly, containing administrative reports and popular notes. The 

 two publications will supersede the Annual Report of the Garden, 

 which has been regularly issued for many years. 



A joint meeting of The American Geographical Society and The 

 Association of American Geographers was held in New York on April 

 3 and 4. Among the papers presented the following are of botanical 

 interest: Botanical Phenomena and the Problem of Coastal Subsidence, 

 by D. W. Johnson; The Period of Safe Plant Growth in Maryland and 

 Delaware, by Oliver L. Fassig; and The Tree as a Factor in Man's 

 Adjustment to Hilly and Rocky Land, by J. Russell Smith. 



Announcement has been made of the summer courses at the Biologi- 

 cal Station of the University of Michigan, located near the Straits of 

 Mackinac. The courses in Field and Forest Botany, in Systematic 

 Botany, in Ecology, and the research work in botany will be in charge 

 of Prof. H. A. Gleason and Mr. Frank T. McFarland. 



The following articles will appear in early issues of The Plant World : 

 Notes on the Flora of some Alaskan Sphagnum Bogs, by George B. 

 Rigg; An Improved Cog Psychrometer, by Harry B. Shaw; Notes on 

 the Flora of Louisiana, by R. S. Cocks; On the Influence of the Order 

 of Development of the Fruits of Passiflora gracilis upon the Frequency 

 of Teratological Variations, by J. Arthur Harris; On the Density of the 

 Cell Sap in some Desert Plants, by W. A. Cannon; and Notes on the 

 Ecology of Sand Dune Plants, by Edward B. Couch. 



