MUSEUM OF COMPARATIVE ZOOLOGY. 37 



New monthly and seasonal rainfall maps of the United States. 



Geogr. rev., September, 1920, 9, p. 173-181. 

 The immigration problem today. Journ. hered., September- 

 October, 1920, 11, p. 323-328. 

 A new series of sunshine maps of the United States. Geogr. rev., 



November, 1920, 10, p. 339-341. 

 The essential characteristics of United States climates. Sri. 



month., December, 1920, 11, p. 555-568. 

 Climate and health, with special reference to the United States. 



Sci. month., April, 1921, 12, p. 355-378. 

 Instruction in climatology in medical schools. Boston med. and 



surg. journ., 12 May, 1921, 184, p. 477^479. 

 Bibliographic notes on the temperature charts of the United States. 



Month, weather rev., May, 1921, 49, p. 277-280. 

 Wheeler, W. M. 



See p. 31. Bull. 64, no. 7. 



