33] 



VOLUMES XLI-L. 



511 



tion of Hillsboro sandstone, 41, 



435- 

 Psychology, Pillsbury, 43, 254; 



Watson, 49, 221. 

 Pumpelly, R., My Reminiscences, 



47, 82. 

 Punnett, R. C, Mendelism, 49, 384. 

 Pyromorphite crystals, Shannon, 



43, 325. 

 Pyrometry, Practical, 45, 75- 



Qualitative, Quantitative Analysis, 

 See CHEMICAL WORKS. 



Queensland Museum memoirs, 41, 

 225; 43, 422; 47, 452. 



Quirke, T. T., radioactivity of 

 meteorites, 44, 237. 



Radiation constants, Henning, 48, 

 470. 



— new secondary, of positive rays, 

 Wolfke, 45, 331- 



— terrestrial, transmission of, Very, 



4i, 513. 



Radio communication, 47, 444. 



Radioactive lead, atomic weight, 

 Richards and Wadsworth, 43, 

 166; density, 41, 293; 42, 365. 



— mineral springs of Colorado, 46, 

 621. 



Radioactivity, Makower and Gei- 



ger, 49, 304. 

 Radioscopic fluorescent screens, 



Roubertie and Nemirovsky, 48, 



392. 

 Radium, absorption spectrum, de 



Broglie, 49, 79. 



— from carnotite, Parsons, et al., 

 41, 214. 



— life of, Gleditsch, 41, 112. 

 Radium and uranium ratio, Lind 



and Roberts, 50, 72; relative ac- 

 tivity, Boltwood and Johnstone, 

 50, 1, 12. 



Radium-D, beta-rays, Meitner, 41, 

 145. 



Raman, C. V., mechanical theory of 

 bowed strings, 48, 74. 



Ramsay, W., Gases of the Atmos- 

 phere, 41, 557. 



Rainier, Mt., Meany, 43, 417. 



Rankin, G. A., the ternary system, 

 MgO-Al 2 3 -Si0 2 , 45, 301. 



Rathbun, Mary J., fossil crab, 41, 

 344; decapod Crustaceans, 47, 

 234. 



Rathbun, R., obituary, 46, 757. 



Raymond, P. E., Beecher's classi- 

 fication of trilobites, 43, 196. 



Reagents and Reactions, Tognoli, 



45, 328. 



Reese, A. M., Zoology, 47, 452. 



Reeves, J. R., Anderson esker, 50, 

 65. 



Refraction, determination of in- 

 dices of, Fabry, 49, 143, 148. 



Refractive indices, determination, 

 Fabry's, Uhler, 49, 143, 148. 



Relativity, Cunningham, 41, 297. 



— Einstein-Lawson, 50, 405. 



— generalized, and gravitation 

 theory, 43, 247. 



— and gravitation, Woolard, 45, 

 425. 



Religion and Science, Woodburne 



50, 80. 

 Research Council, National, organ- 

 ization, 48, 163; 49, 156; 50, 79; 

 building, 50, 473. 

 Resistance-box plugs, lubrication, 



Manley, 43, 331. 

 I Respiratory Exchange of Animals, 

 j and Man, Krogh, 43, 422. 

 1 Rhode Island, geology, Hawkins, 



46, 437; Perkins, 49, 61. 

 Richardson, G. B., age of Scranton 



I coal, Colorado, 43, 243. 

 Richardson, O. W., Emission of 

 Electricity from Hot Bodies, 42, 

 369. 

 Richter's Organic Chemistry, Spiel- 

 man n, 48, 469. 

 Richthofenia in Texan Permian, 

 I Bose, 44, 157. 



! Ridgway, R., Birds of No. Amer- 

 J ica, 42, 86; 48, 402. 

 : Ries, H., Economic Geology, 43, 

 i 252, 339; dolomitic clay, 44, 316. 

 Righi, Augusto, 50, 466. 

 Rings, Kunz, 43, 339. 

 Ripple marks, recent and fossil, 



Kindle, 43, 491. 

 Ripples, origin of fossil, etc., 



Bucher, 47, 149, 241. 

 Ritter, W. E., Unity of Organism, 



49, 220. 

 Robbins, H. E., conductivity cell 



for electro-titration, ai, 246. 

 Robbins, W. W., Botany of Crop 



Plants, 45, 242. 

 Robertson, T. B., Physical Chem- 

 istry of Proteins, 46, 548. 



