VIU CONTENS. 



PUHLIC LECTURES, COURSE OF ISO^^iSOH. 

 October 31, 1892. 



PROF. CHARLES F. CHANPI.TCU. 

 Aluminium niid its Alloys 25 



November 21, 1892. 



PROF. HENRY F. OSBORN. 



Tl ic Rise of tlie Mammalia 53 



December 19, 1893. 



PROF. W. B. SCOTT. 



Fossil Hunting in the Northwest 55 



January 16. 1898. 

 PROF. CRARLES R. CROSS. 



Tlie Determination and Recent History of Musical Pitch, especially in 



this Country (19 



February 20. 1893. 



COURTENAY DEKALB, E. M. 



Tliree Thousand Miles up the Amazon 90 



March 20, 1893. 



COMMANDER THEO. F. JEWELL. 



Torpedoes IT;! 



AjirU 17, 1893. 



I'lloF. W. LE CONTE STEVENS. 



Naples and its Surroundings ISS 



May 15, 1893. 



DIt. KDWAKl) (1. LOVE. 

 Photographing Microscopic Objects 220 



