1920. NATURAL SCIENCES OF PHILADELPHIA. 11 



February 17. 



The President, John Cadwalader, A.M., LL.D., in the Chair. 



Thirty-one persons present. 



The deaths of the following members were announced: John A. 

 Brown, Jr., A. Sidney Carpenter, Joseph M. Fox, Thomas C. Stell- 

 wagen, and WiUiam K. Ramborger. 



Mr. Henry W. Fowler made a communication on: "Habits 

 and Distribution of some of our Local Fishes." (No abstract.) 



The report of the Committee on the Hayden Memorial Award 

 conferring the gold medal on Professor Thomas Chrowder Cham- 

 berlin, Ph.D., LL.D., Sc.D., of the University of Chicago, was 

 unanimously adopted. 



Thomas Chrowder Chamberlin was born in Mattoon, Illinois, 

 September 25, 1843. He graduated from Beloit College in 1866, 

 and received the degree of A.M. at the same institution in 1869. 

 He pursued graduate studies at the University of Michigan from 

 1868 to 1869; he received the degree of Ph.D. from the University 

 of Michigan and the University of Wisconsin in 1882. He received 

 the degree of LL.D. from the University of Michigan, Beloit College, 

 and George Washington University in 1887; from the University 

 of Wisconsin in 1904; and from L^niversity of Toronto in 1913. He 

 received the degree of Sc.D. from the University of Illinois in 1905. 

 Doctor Chamberlin married, in 1867, Miss Alma Isabel Wilson, and 

 has one son, who is now Professor Rollin T. Chamberlin, of the 

 Geological Department of the University of Chicago 



Doctor Chamberlin w-as principal of the State Normal School, 

 Delavan, Wisconsin, from 1866 to 1868, and was Professor of Nat- 

 ural Sciences at the State Normal School, Whitewater, Wisconsin, 

 from 1869 to 1873. He was Professor of Geology at Beloit College 

 from 1873 to 1882, and at George Washington University from 

 1885 to 1887. In 1887, he was elected President of the University 

 of Wisconsin, which position he held until 1892, when he was ap- 

 pointed Professor of Geology and Head of the Department of Ge- 

 ology, and Director of the Walker Museum at the University of 

 Chicago. 



Doctor Chamberlin has carried on a vast amount of geologic 

 research in a remarkably wide range of subjects. He was Assistant 

 State Geologist of Wisconsin from 1873 to 1876, and Director of 



