xvi National Geographic Magazine. ■ 



April 8, 1892. Special meeting. 



Meeting held in the Lecture Hall of the National Museum. 

 Vice-President Hayden in the chair. Attendance, 375. 



Lieutenant C. H. Harlow, U S N, gave a description of a 

 trip through Bolivia, illustrating his topic by lantern slide views 

 taken at various points in the country. 



■April 15, 1892. 67th meeting. 



Meeting held in the Lecture Hall of the National Museum. 

 Attendance, 435. 



Mr W. H. Holmes, of the Bureau of Ethnology, gave an 

 illustrated lecture on the '• Chff Dwellers." At the close of the 

 lecture remarks were made by Major J. W. Powell. 



April 22^ 1892. Special meeting. 



Meeting held in the Lecture Hall of the National Museum. 

 President Hubbard in the chair. Attendance, 400. 



Dr John Murray, F R S E, gave a description of the cruise 

 of the Challenger and summed up some of the results of the in- 

 vestigation of the ocean bottom. The descriptions of the deep- 

 sea mud and ooze were profusely illustrated by lantern slides. 



April 29, 1892. 68th meeting. 



Meeting held in the Assembly Hall of the Cosmos Club. 

 Vice-President Hayden in the chair. Attendance, 100. 



Lieutenant S. AV. B. Diehl, U S N, gave a lecture on '' The 

 compensation of the compass on board iron ships," illustrating 

 his remarks by diagrams, and exhibiting a ship's binnacle to- 

 gether with the various magnets and other apparatus employed. 



Professor Cleveland Abbe spoke briefly on terrestrial mag- 

 netism. 



May 6, 1892. Special meeting. 



Meeting held in the Lecture Hall of the National Museum. 

 Yice-President Hayden in the chair. Attendance, 268. 



Reverend Professor John P. Peters delivered a lecture on 

 " Mesopotamia," describing the country and his experience 

 there during his two seasons' work of excavation. A large num- 

 ber of lantern slides were shown. 



