Reports of Officers of the Society. 89 



January 14th. "Climate, Plant Life and Consumption." 



Dr. Walter A. Dun. 

 January 21. "Deep Sea Explorations.'"' 



Prof. Jos. F. James, of Miami University. 

 •January 28. "Tlie Moon." 



Prof. Jermain G. Porter, of Cincinnati University. 

 February 4. "The Retreat of the Ice and the Evolution of 

 Lake Erie," with maps and illustrations. 



Prof. Edward W. Claypole, of Buchtel College. 

 February 11. "The United States Fish Commission." 



Mr. Herbert Jenney. 



February 18. "Forestry." 



Mr. Reuben H. Warder. 



February 25. "Sun Spots," with diagrams. 



Prof. Amos R. Wells, of Antioch College. 

 March 4. "Gas as a Fuel," with illustrations. 



Prof. N. W. Lord, Ohio State University.. 

 March 11. "Earthquakes." 



Prof. J. W. Hall, Jr., Principal Covington High School. 

 March 22. "The Origin of Man and other Mammalia." 



Prof. E. D. Cope, Philadelphia Academy of Sciences. 

 March 25. "Bird Life." 



Prof. F. W. Langdon, of Miami Medical College. 

 The lecture by Prof. Claypole, of Buchtel College, on the 

 Retreat of the Ice and the Evolution of Lake Erie, was given in 

 College Hall, as was also that by Prof. N. W. Lord, of Ohio State 

 University, on "Gas as a Fuel." Both lectures were well attended 

 and great interest was manifested in the subjects treated. The 

 other lectures were given in the lecture -room of the museum, 

 which was well filled- on every occasion, and generally more 

 attended than could be seated. 



The lecture by Prof. Cope, of Philadelphia, on the "Origin 

 of Man and other Mammalia," was a pay lecture, the proceeds to 

 go to the society's building fund. This lecture was given in the 

 hall of the Scottish Rite Cathedral. 



The Lyceum of Natural History for the young people was 

 organized Saturday, January 8th, by authority given by the execu 

 tive board of the society to the custodian, in answer to a proposi- 

 tion for such an organization made by him to the board at their 

 meeting in November, 1886. One hundred and seventeen boys 



