1899, 
1900, 
1901, 
1902 
1903, 
1904, 
1905, 
1906, 
1907, 
1908, 
1909, 
1910, 
IQII, 
1912. 
April 
April 
April 
April 
April 
April 19-21. 
November 15-16. 
April 18-20. 
November 14-15. 
April 16-18. 
November 20-22. 
April 16-18. 
November 19-20. 
April 21-23. 
November 17-18. 
April 20-22. 
November 16-18. 
April 19-21. 
November 8-10. 
April 18-20. 
November 21-22. 
April 16-18. 
November 12-13. 
18-20. 
November 14-16. 
17-19. 
November 13-14. 
16-18. 
November 12-14. 
15-17. 
November 11-12. 
21-23. 
November 17-18. 
APPENDICES 387 
Washington (Columbian University). 
New York City (Columbia University). 
Washington (Columbian University). 
Providence, Rhode Island (Brown University). 
Washington (U. S. National Museum). 
Philadelphia (Houston Hall, University of Pennsyl- 
vania). 
Washington (U.S. National Museum). 
Baltimore (Physical Laboratory, Johns Hopkins Uni- 
versity). 
Washington (U. S. National Museum). 
Chicago (Haskell Oriental Museum, University of 
Chicago). 
Washington (U. S. National Museum). 
New York City (Havemeyer Hall, Columbia Uni- 
versity). 
Washington (U. S. National Museum). 
New Haven, Connecticut (Sheffield Scientific School, 
Yale University). 
Washington (U. S. National Museum). 
Boston (Harvard Medical School). 
Washington (Smithsonian Institution and U. S. 
National Museum). 
New York City (Schermerhorn Hall, Columbia Uni- 
versity). 
Washington (Smithsonian Institution). 
Baltimore (Johns Hopkins University). 
Washington (Smithsonian Institution). 
Princeton, New Jersey (Guyot Hall, Princeton Uni- 
versity). 
Washington (Smithsonian Institution). 
St. Louis (Missouri Botanical Garden). 
Washington (U.S. National Museum). 
New York City (New York Public Library). 
Washington (U. S. National Museum). 
New Haven, Connecticut (Sloane Physical Labora- 
tory, Yale University). 
