PROCEEDINGS. 
521 
401st Meeting. March 1, 1893. 
Vice-President Dall in the chair. 
Seventeen members present. 
Mr. Waldemar Lindgren read a paper on Two Neocene rivers 
of California. 
Remarks were made by Messrs. Turner, Diller, Walcott, 
and Lindgren. 
Mr. Marshall McDonald made a communication on A study 
of the Gulf stream in relation to the tile fish. [Never written.] 
It was discussed by Messrs. Walcott and Dall. 
402d Meeting. March 18, 1893. 
Vice-President Fletcher in the chair. 
Forty-eight members and guests present. 
The Chair announced the election to membership of Frank 
Lawton Olcott Wadsworth ; Louis Albert Fischer, and Cyrus 
Adler. 
Mr. W. H. Holmes made a communication entitled Traces of 
glacial man in the Trenton gravels. [Published in the Journal 
of Geology. 8°, Chicago, 1893, Jan.-Feb., vol. 1, no. 1, pp. 15-37.] 
It was discussed by Messrs. Powell, Harkness, McGee, and 
PIolmes. 
Mr. Asaph Hall made a communication on The planet Mars. 
[Not written for publication.] 
Remarks were made by Messrs. Gilbert, Eastman, and Hall. 
403d Meeting. April 1, 1893. 
Vice-President Dall in the chair. 
Twenty-five members present. 
Mr. 0. T. Mason read a paper on The philosophy of folk-lore. 
[Published in the Journal of American Folk-Lore. 8°, Boston, 
1891, April-June, vol. 4, no. 13, pp. 97-105.] 
