m 



CONTENTS. 



A 



18 

 19 

 16 



20 



Edward D. Cope. On the Transition Beds of the Saskatche- 

 wan District ...... 9 



Persifor Frazer, Jr. Mineralogical Notes . . . .10 



Edward D. Cope. The Herpetology of Florida . . .10 

 Joseph Leidy, M.D. On a Fungus in a Flamingo ... 11 

 Joseph Leidy, M.D. Notes on some Parasitic Worms . 14,11 



Edward D. Cope. The Extinct Batrachia of Ohio . . .16 

 Persifor Frazer, Jr. The Vertical Lantern and Mineralogy . 16 

 Thomas Meehan. On Increase of Power in Plants to Resist 



Cold 



Edward P. Cope. On Greensand Vertebrata .... 



D. D. Wileard. Effects of Cold on Iron .... 



Edward D. Cope. On the Homologies of the Sectorial Tooth 

 of Oarnivora ......... 



Thomas G. Gentry. Curious Anomaly in History of certain 

 Larva? of Acronycta oblinita, Guenee, and Hints on Phyto- 

 geny of Lepidoptera .24 



H. K. Morrison. Notes on the Noctnidae, with descriptions of 



certain new species 55 



Persifor Frazer, Jr. On thin Sections of the Traps of the 



Mesozoic Basin . . . . . . . .72 



Edward D. Cope. The Feet of Bathmodon .... 73 



Joseph Leidy, M.D. Remarks on some Marine Rhizopods . 73 

 Persifor Frazer, Jr. Notes on the Character of the Lower 



Silurian Slates at their Outcrops ..... 76 



Robert Ridgway. On Nisus Cooperi ^Bonaparte) and N. 



Gundlachi (Lawrence) 78 



Robt. Ridgway. On the Buteonine Subgenus Craxirex, Gould 89 

 Joseph Leidy, M.D. Remarks on a Coal Fossil, etc. . . 120 

 Joseph Leidy. M.D. Remarks on Elephant Remains . . 121 

 C. Newlin Peirce. Remarks on Stephanoceros . . . 121 

 II. C. Chapman. M.D. On the Disposition of the Great Omen- 

 tum in Cynoeephalus porcarius, etc. ..... 123 



Persifor Frazer, Jr. On the Trias of York Co., Pa. . . 123 



(Continued on p. 3.) 



S5v 





