VIU TABLE OF CONTENTS. 



WILLIAM D. MAKES. 



PAGE 



A Review of Dynamic Electricity (December 21, 1885) 89-110 



C. HART MERRIAM. 



Description of a New Species of Aplodontia from California {Aplo- 

 dontia major) (March 15, 1886); read by title 179 



CHARLES E. MOLDENKE. 



The Egyptian Origin of our Alphabet (December 7, 1885) 81-88 



JOHN S. NEWBERRY. 



On the American Trias (October 26, 1885), abstract . 18 



The Recent Geological Congress at Berlin, its Objects, its Results, 



and its Men (November 2, 1885), ivithout abstract 25 



Description of Some Gigantic Placoderm Fislies Recently Found in 



the Devonian of Ohio (November 9, 1885), abstract 25-28 



Remarks upon Three Recent Papers (November, 30 1885), abstractJl-ld 

 The Cretaceous Flora of North America (January 25, 1886), with ab- 

 stract ". .133-137 



Notice of Fossil Fishes of the Chemung and Catskill (June 7, 1886), 

 read by title 281 



LUCIUS PITKIN. 



Theories Concerning the Protective Influence of Mitigated Virus 



(March 29, 1886) 204-213 



JOHN K. REES. 



A New Electric Winding- Apparatus for Clocks (February 15, 1886) 158-157 

 On the Need of a Normal Time System for Observatories (Febru- 

 ary 15, 1886) 158-163 



EUMINNIE A. SMITH. 



■Significance of Flora to the Iroquois (March 22, 1886), loithoiit ab- 

 stract 202 



STEPHEN SMITH. 



The Subject of the Sanitary Influence of Vegetation in Cities, and 

 the Importance of Tree-planting to the Health, Beauty, and 

 Summer Temperature of New York, with Practical Suggestions 

 in Rehition thereto (May 24, 1886), without abstract 264 



RICHARD P. STEVENS. 

 On tlie San Juan Mountains of Colorado (January 18, 188G) 121-130 



CHARLES A. YOUNG. 



Ten Years' Progress in Astronomy (May 17, 1886) 234-263 



