L i 



INDEX TO VOLUME IX 



An * denotes an abstract of a published paper. A t denotes an abstract of a piper presented 

 before the Academy or an afiSIiated Society. A § indicates an item published under the head 

 Scientific Notes and News. 



PROCEEDINGS OF THE ACADEMY AND AFFILIATED SOCIETIES 



Biological Society of Washington. Proceedings: 175, 205, 234, 287, 355, 418, 656. 

 Botanical Society of Washington. Proceedings: 143, 415, 559. 



Entomological Society of Washington. Proceedings: 22, 81, 148, 206, 357, 416. 

 Geological Society of Washington. Proceedings: 107, 288, 382, 451, 500. 

 Philosophical Society of Washington. Proceedings: 20, 140, 267, 349, 447, 642. 

 Washington Academy of Sciences. Proceedings and Notes: 81, 107, 204, 234, 



267, 344, 602. 

 Washington Society of Engineers. Proceedings: no. 



AUTHOR INDEX 



Abbot, C. G. fEclipse party, obser- 

 vations of the Smithsonian, June 8, 

 1918. 21. 



Adams, Elliot Q. Crystallography 

 and optical properties of the photo- 

 graphic sensitizing dye, pinaverdol. 

 396. 



Crystals, classification of mimetic. 



153- 

 Adams, L. H. fAnnealing of glass. 



351- 

 — ■ — *Compressibility of solids, deter- 

 mination of. 598. 



*Fiirnace temperature regulator. 



626. 



Mustard "gas," some physical 



constants of. 30. 



Relation between birefringence 



and stress in several types of glass. 

 609. 



*Temperature distribution in sol- 

 ids during heating or cooling. 626. 



Adams, Oscar S. *Grid system for pro- 

 gressive maps in the United States. 



597- 



fMap projections in general, 



study of. 448. 



— — *Polyconic projections, general 

 theory of. 552. 



Allard, H. a. *Mosaic disease of to- 

 bacco, effects of salts, acids, germ- 

 icides, etc., upon virus causing. 



173- 

 Allen, E. T. *Glass analysis, contri- 

 bution to the methods of. 599. 



*Glass, condition of arsenic in, 



and its role in glass making. 558. 



Anderson, Rudolph Martin. Zoologi- 

 cal exploration in the western Arc- 

 tic, recent. 312, t356. 



Atwood, Wallace W. *Landslides and 

 glacial deposits, relation of, to 

 reservoir sites in San Juan Moun- 

 tains, Colorado. 316. 



663 



c^ 



y/-7 



