ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES 



Wednesday, April 20. The Society of Engineers, at the Cosmos Club, at 

 8.15 p.m. 



Thursday, April 21. The Academy, at the Cosnios Club, at 8.15 p.m. 



Saturday, April 23. (The regular meeting of the Philosophical Society is 

 postponed on account of the meeting of the American Physical Society 

 on the same date.) 



Wednesday, April 27. The Geological Society, at the Cosmos Club, at 8 

 p.m. Program: 



M. AuROUSSEAu: A short account of the structural geology of Australia. 

 R. A. Daly: The nature of the forces involved in mountain building. 



Thursday, April 28. The Chemical Society. 



Saturday, April 30. The Biological Society, at the Cosmos Club, at 8 p.m. 



Tuesday, May 3. The Botanical Society, at the Cosmos Club, at 8 p.m. 



MEETINGS OF NATIONAL ORGANIZATIONS IN WASHINGTON 



April 18-20. The American Geophysical LTnion. 



April 20-21. The American Meteorological Society. 



April 22-23. The American Physical Society. 



April 25-27. The National Academy of Sciences. 



May 2—1. The American Society of Mc mmalogists. 



PROGRAMS ANNOUNCED SINCE THE PRECEDING ISSUE OF THE JOURNAL' 



Saturday, April 2. Joint meeting of the Academy and the Biological Societj', at the 

 Cosmos Club, at 8.15 p.m. Program: A. D. Hopkins: Intercontinental problems 

 in natural and artificial distribution of plants and animals. 



Tuesday, April 5. Joint meeting of the Anthropological Society and the Medical Society, 

 at the Medical Society Buildmg, at 8 p.m. Program: George M. Kober: A plea 

 for the prevention of permanent disabilities in childhood. 



Tuesday, April 5. The Botanical Society, at the Cosmos Club, at 8 p.m. Program: 

 W. H. Weston: Follor<nng a ftmgns through the Philippines. J. F. ClevEnger: 

 On Zamia integrifoHa Chapm., and its starch, Florida arroiv-root. Arno ViehoevER: 

 Edible and poisonous beans of the Lima type, Phaseolus lunatus. 



Wednesday, April 6. Joint meeting of the Washington Society of Engineers and the 

 Washington Section of the American Institute of Mining and Metallurgical Engi- 

 neers. Program: Geo. S. RicE: Destruction of French mines and methods used in 

 tlieir rehabilitation. 



Thursday, April 7. The Entomological Society, at the National Museum. Program: 

 August Busck and Carl Heinrich: On the male genitalia of tlie Microlepidoptera 

 and their •systematic importance. S. A. Rohwer: Injurious and beneficial cynipid 

 galls. 



.' Received too late for publication before the date of the meeting. 



