442 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
Page 
Ball-bearings, Anemometer-compari¬ 
sons and. C. F. Marvin. 392 
Bancroft, J. F.: Paris Exposition.... 361 
Bases in 1900, Measurement of nine 
primary. A. L. Baldwin. 374 
Bates, F. J.: Effect of a magnetic field 
on plane-polarized light. 425 
Bauer, L. A.: Earth’s permanent mag¬ 
netism and its secular variation. 418 
— Energy and entropy . 390 
— Magnetic forces causing secular 
variation of earth’s magnetism.. 431 
— Magnetograph records showing 
earthquake-shocks . 427, 428 
— Plan of magnetic survey of U. S.. 356 
— Remarkable magnetic activity.... 397 
— Solar eclipse of May 28, 1900.... 368 
—- Terrestrial magnetism ... 356 
Baylor, J. B. : Magnetic survey of 
North Carolina . 372 
Bell, A. G.: Tetrahedral kites. 428 
Bentley, Mr., Microphotographs of 
snow-crystals made by. 411 
Berlin, Physikalische-Technische An- 
stalt of. A. L. Day. 367 
Bibliography of mathematics. Interna¬ 
tional. J. H. Gore. 413 
Bigelow, F. H. : Applications of 
mathematics to meteorology. . . . 408 
— Aristotle’s physics and modern 
physics .. 389 
— Eclipse observations of May 28, 
1900 . 359 
— Mathematics in meteorology. 215 
—- Measurement of gravity. 353 
— Memorial address on Wm. Hark- 
ness . 292, 415 
— Synchronism in solar and terres¬ 
trial atmospheres . 418 
Black bodies. A. L. Day.411, 417 
Bolton, H. C. : Genesis of hygrometers 
and anemometers . 414 
— Radio-active substances ......... 358 
— Science and art under Rudolph II, 
1570-1612 .. 401 
Boomerangs. G. T. Walker. . .. 411 
Boundary, Alaskan. O. H. Titt- 
mann . 359, 431 
Briggs, L. J. : Adsorption of gases... 395 
-salts . 357 
— Adsorbed aqueous films. ........ 423 
— Electricity .. 359 
— New electrical condenser. 353 
— Rainbow observed in dew. 391 
Brobrick, G. A. : Liquid air. 394 
Brown. S. J. : Solar eclipse of May 
28, 1900 . 368 
Page 
Buckingham, E. : Aeration of soils... 433 
Buildings of National Bureau of 
Standards. E. B. Rosa. 400 
Bureau of Standards, Buildings for 
National. E. B. Rosa. 400 
— Standardizing. S. W. Stratton. .. 367 
Burkhardt and Meyers’ Encyclopadie 
der Mathematischen Wissenschaf- 
ten. C. Abbe. 408 
Burnett, S. M. : Memorial address on 
Chas. Nordhoffi . 415 
Busey, S. C. : Memorial address on, by 
A. F. A. King. 415 
By-laws adopted . 403 
Cable from California to Philippine 
Islands, Survey for. G. W. Lit- 
tlehales . 356 
Carleton, M. A. : Paris Exposition... 361 
Carnegie Institution. C. D. Walcott. 402 
-M. Baker.. 391 
Carr, W. K. : Compound pendulum 
curves . 357 
Carroll, Mitchell: Recent excavations 
in Roman Forum... 354 
Cassanowdcz, I. M.: B’unerary customs 
of the ancient Egyptians. 373 
Catalogue of scientific literature, In¬ 
ternational. C. Adler. 378 
Centenary, Dalton, at Manchester. 
F. W r . Clarke. 417 
Center of an area. J. F. Hayford. ... 379 
—population. J. E. Hilgard. 379 
Chemical Congress at Berlin. F. W. 
Clarke .. . .« 417 
Christiania, Visit to. Simon New¬ 
comb . 402 
Circle, Quadrature of. C. K. Wead. . 377 
-C. G. Abbot. 410 
Clark, Edward: Obituary notice of, 
by B. R. Green. 286, 415 
Clarke, F. W. : Chemistry at Congress 
of Arts and Sciences. 430 
— Dalton centenary at Manchester 
and Chemical Congress at Berlin 417 
— New law in thermo-chemistry. . .. 399 
— Paris Exposition... 361 
Climate, Evolution of. Marsden Man- 
son .. 432 
Committee on Mathematical Science, 
Report of.1, 139, 205, 408 
-Physical Science, Report of. . . . 93 
Compass-error, Locus of geographical 
position and the. G. W. Little- 
hales .. 233, 415 
Complex functions, Analytic represen¬ 
tation of. F. G. Radelfinger. 227, 409 
