CONTENTS. PAGE. The Application of Biology to Geological History; Annual Address Description of some new species of birds from Cozumel Island, Yucatan, Robert Ridgway (February 26, 1885*) Description of a new species of Chipmunk from California (Tamias macrorhabdotes, sp. nov.), C. Hart Merriam (January 27, 1886*) I 25 On a new method of producing immunity from Contagious Diseases, D. E. Salmon and Theobald Smith (February 22, 1886*). The Beginnings of Natural History in America; Annual Address of Additions to the flora of Washington and Vicinity, from April 1, 35 *Author's extras of each of the special papers here enumerated were published at the date |