1887.] NEW YORK ACADEMY OF SCIENCES. 113 



ing persons : Birdseye Blakeman, A. H. Elliott, Mrs. J. A. 

 Gallagher, Dr. Alex. Haddon, Thomas Holland, Jos. M. Knap, 

 Kev. E. F. Moldenke, Dr. W. B. Neftel, Chas. E. Strong, Alex- 

 ander Warner. 



The report was adopted, and the resignations accepted. 

 The following paper was read by title : 



NOTES ON THE SURFACE GEOLOGY OF S. W. VIRGINIA. 



By Prof. J. J. Stevenson. 

 Prof. H. L. Fairchild read a paper upon 



TRANSFORMATIONS OF THE SKIN IN THE ANIMAL KINGDOM. 



(Illustrated with lantern views.) 



March U, 1887. 



Stated Meeting. 



The President, Dr. J. S. Newberry, in the chair. 



Twenty-six persons present. 



An invitation was read from the Trustees of Columbia College 

 asking the Academy to participate by delegate in the Centennial 

 celebration of the College, April 13th, 1887. 



Dr. N. L. Britton presented the shell of Anodon excurvatus 

 from Southampton, L. I., it being new to the locality. 



Mr. B. B. ChamBerlin exhibited geodes, containing ame- 

 thyst and calcite, from trap rock of Nova Scotia. 



Mr. a. p. Bjerregaard exhibited smoky quartz from Mor- 

 risania. 



President Newberry stated that he had received from Prof. 

 Dwight of Vassar College some trilobites, collected near Pough- 

 keepsie, which were characteristic of the middle Cambrian, and 

 which indicated a geological horizon probably equivalent to the 

 '•' St. John's" of New Brunswick. 



