ji5t^ 



New York State Museum Bulletin 



Entered as second-class matter November 27, 1913, at the Post Office at Albany, N. Y., 



under the act of August 24, 1012. Acceptance for mailing at special rate of postage 



provided for in section 1103, act of October 3, 1917, authorized July 19, 191S 



Published monthly by The University of the State of New York 



Nos. 239-240 



ALBANY, N. Y. November-December 1920 



t\he University of the State of New York 

 New York State Museum 



John M. Clarke, Director 



SEVENTEENTH REPORT OF THE DIRECTOR OF 



THE STATE MUSEUM AND SCIENCE 



DEPARTMENT 



INCLUDING THE SEVENTY-FOURTH REPORT OF THE STATE MUSEUM, 



THE FORTIETH REPORT OF THE STATE GEOLOGIST AND THE 



REPORT OF THE STATE PALEONTOLOGIST FOR 1920-21 



PAGE 



Introduction 7 



Functions of the Museum 13 



Geological Survey 13 



Botany 28 



Entomology 32 



Archeology and Ethnology 41 



Zoology 50 



PAGE 



The Existence and Configura- 

 tion of Precambrian Continents. 

 Rudolf Ruedemann 65 



The Champlain Sea. Winifred 

 Goldring 153 



List of Publications 195 



Index 209 



. 



if % 



ALBANY 



THE UNIVERSITY OF THE STATE OF NEW YORK 



1922 



Mi62r-Ap22-i7oo 



