P 1 1 li :t A ■'J Y -J3 



INDEX TO VOLUME 11 



An ♦ denotes an abstract of a published paper. A t denotes an abstract of a paper presented before 

 the Academy or an afiBliated Society. A { indicates an item published under the head Scientific Notes 

 and News. 



PROCEEDINGS OF THE ACADEMY AND AFFILIATED SOCIETIES 



Anthropological Society of Washington. Proceedings: 377. 



Archaeological Society of Washington. Proceedings: 23. 



Biological Society of Washington. Proceedings: 64, 213, 241, 262, 315. 



Botanical Society of Washington. Proceedings: 118,242,473. 



Chemical Society of Washington. Proceedings: 40. 



Entomological Society of Washington. Proceedings: 140, 194, 215. 



Geological Society of Washington. Proceedings: 421,444. 



Philosophical Society of Washington. Proceedings: 21, 37, 162, 211, 238, 283, 313, 347, 395, 



497, 513. 

 Washington Academy of Sciences. Proceedings: 114, 138, 443, 472. 



AUTHOR INDEX 



Abbot, C. G. fSolar constant observ- 

 ing stations. 473. 



Adams, Elliot Q. Acidity, methods of 

 stating. 197, 202. 



Adams, L. H. *Annealing of glass. 417. 



t Density of strained glass. 284. 



Diamond, compressibility of. 45. 



fElastic properties of rocks. 447. 



treating of substances by expan- 

 sion. 349. 



*Optical glass manufacture, motion 



of stirrers. 377. 

 Adams, Oscar S. fAuthalic latitude. 347. 

 *Latitude developments, with table 



for Lambert equal-area meridional 



projection. 312. 



*Map projection, elements of. 345. 



*Radio-compass bearings. 416. 



Adams, Roger. fOrganic chemical re- 

 agents. 41. 

 Aldrich, J. M. fBot flies and their 



biology. 142. 

 fCaterpillars used for food by 



Pahute Indians. 218, 241. 

 *DoUchopus in North America, 



Dipterous genus. 395. 



Alexander, C. P. *Diptera of the Tip- 

 uloidea in District of Columbia. 347. 



Allen, E. T. fFumaroles, study of. 42. 



Alsberg, C. L. Chemical structm-e and 

 physiological action. 321. t472. 



jMuseum of chemical compounds. 



41. 



Ames, J. S. §Hydrodynamics, some ap- 

 plications, to aeronautics. 447. 



Anthony, Stephen. *Barley kernels in 

 normal and clipped spikes, develop- 

 ment of, and limitations of awnless and 

 hooded varieties. 137. 



Austin, L. W. Wave front angle in radio 

 telegraphy. 101. 



Baker, A. C. *Aphididae, generic clas- 

 sification of hemipterous family. 190. 



*Aphids injurious to orchard fruits, 



cturant, gooseberry and grape. 192. 



Bancroft, W. D. fCon tact catalysis. 41, 



Banks, Nathan. *Termites, nearctic, re- 

 vision of. 55. 



Barnett, S. J. fMagnetization by rota- 

 tion. 162. 



BarTsch, Paul. *Birds observed on Flor- 

 ida Keys and southern end of mainland 

 in 1919. 60. 



517 



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