IV CONTENTS. 



H. K. Morrison. New Phalsenidse 194 



B. P. Mann. Anisopteryx vernata and pometaria 204 



Tributes to the Memory of LOUIS AGASSIZ . ...... 210,211,225 



T. Sterry Hunt. Stratification of Rock-masses 237 



A. Pi. Grote. Notes on the Noctuidae 239 



L. F. Pourtales. Remarks on Crinoids 245 



J. A. Allen. Metamorphism produced by the burning of Lignite Beds . 246 



T. M. Brewer, M.D. Hybridism among the Ducks 263 



E. P. Austin. Catalogue of Mt. Washington Coleoptera 265 



J. L. LeConte. New Coleoptera 272 



J. A. Allen. Geographical Variation in North American Squirrels, with 



a List of the N. A. Sciuridse 276 



H. Hagen, M.D. On Amber in North America 296 



T. Sterry Hunt. Deposition of Clays 302 



Robert Ridgway. The Lower Wabash Valley, and its Avian Fauna • . 304 

 T. Sterby Hunt. On Dr. Genth's Researches on Corundum and its 



associated Minerals 332 



S. Kneeland, M.D. Remarks on the Ashantees and Fantees 335 



Evidence for and against the existence of the so- 

 called Sea-serpent 337 



F.W.Putnam. Notes on the Ophidiidse and Fierasferidge 339 



T. M. Brewer, M.D. Notes on the Nesting and Eggs of Lagopus 



leucurus 348 



H. Hagen, M.D. The Odonate Fauna of Georgia 349 



F. W. Putnam. Remarks on the Family Nemophidas 366 



Samuel Wells. A simple Heliostat . 374 



S. Kneeland, M.D. On the Geology of the Pacific Railroad . . . 375 



