PROCEEDINGS 



OF THE 



AMERICAN PHILOSOPHICAL SOCIETY, 



HELD AT PHILADELPHIA, FOR PROMOTING USEFUL KNOWLEDGE. 



'^.^^^^i 



Vol. XXX.^oZ/T5 April. 1892. No. 138. 



TABLE OF CONTENTS, page 



A Sketch of the Life of Joseph Leidy, M.D,, LL.D. By TF. 8. W. 



Ruschenberger, M.D , .- 135 



The Osteology of the Lacerlilia (with five plates). By Prof. E. D. 



Cope 185 



On Some New and Little Known Paleozoic Vertebrates (with two 



plates). By Prof. E. D. Cope 221 



Civil and Military Photogrammetry (with one plate). By It. Meade 



BacJie 229 



On the Skull of the Dinos;aurian Laelaps incrassatus Cope. By Prof. 



E. I). Cope 240 



Additional to the Note on the Taxonomy of the Genus Emys, 



C. Dumeril. By Prof. Dr. G. Baur 245 



Second Contribution to the Study of Folk-Lore in Philadelphia and 



Vicinity. By Henry Phillips, Jr... 246 



Further Notes on Fuegian Languages. By D. O. Brinton, M.D., 



LL.T) 249 



Stated Meeting, April 1, 1S92 254 



Stated Meeting, May 6, 1892 256 



Stated Meeting, May 20, 1S92 263 



It is requested that the receipt of this number be acknowledged. 



In order to secure prompt attention it is requested that corre^ 

 spondence be addressed simply " To the Secretaries of the An^erican 

 Philosophical Society. 104 S. Fifth St., Philadelphia." 



Published for the American Philosophical Society 



BY 



MaCCALLA & COMPANY, 



NOS. 237*9 DOCK STREET, PHILADELPHIA. 



