IVlAft k^c) WI2 



TRANSACTIONS OF 



THE CONNECTICUT ACADEMY 



OF ARTS AND SCIENCES 



VOLUME 25] 



MARCH 1922 



[;;PAGES 211-279 



Tertiary Spiders and Opilionids 

 of North America 



BY 



ALEXANDER PETRUNKEVITCH, Ph.D. 



Professor of Zoology in Yale University. 



NEW HAVEN, CONNECTICUT 



PUBLISHED BY THE 



CONNECTICUT ACADEMY OF ARTS AND SCIENCES 



AND TO BE OBTAINED ALSO FROM THE 



YALE UNIVERSITY PRESS 



