Index. 



487 



Marsh Collection of Vertebrates. 



Lull., 159; Thorpe, 97, 162, 277. 



371, 423; Troxell, 123. 288. 365. 

 Mass and weight, proportionality. 



Brush, 477. 

 Matisse, G., Movement Scien- 



titique, France, 227. 

 McCallie, S. W., Pitts meteorite. 



211. 

 Megadiastrophism, Chamberlin's 



theory, Jones, 393. 

 Melilites, synthetic, 35. 

 Merrill, G. P., new meteorites. 153. 



225, 386; metamorphism in 



meteorites. 307; meteoric iron, 



Odessa, Texas, 335. 

 Merwin, H. E., Hawaiian Augite. 



117. 

 Meteorite, Pitts, McCallie. 211. 

 Meteorites, metamorphism, Merrill. 



307; new. Merrill. 153, 225; 



Odessa. Texas, 335, 386. 

 Miller, E. R., 1920 dustfall, 349. 

 Mind, Physiology, Dercum, 391. 

 Mineral Production, Distribution, 



389; of the United States, etc.. 



384. 

 Mineralien Physiographic etc.. 



Rosenbusch, 152. 

 Mineralogy, Dana's Textbook, re- 

 vised. Ford. 155, 224. 

 — Determinative, Lewis, 154. 



MINERALS. 



Adularia, 154- Augite, Hale- 



akala. 117. 

 Collophane, 269. Columbites. 



South Dakota. 297. 

 Feldspar studies, Japan. 154. 

 Melanovanadite, Peru. 195. 



Melilites. 35. Moonstone, 154. 

 Tantalate. South Dakota, 293. 



Mines, U. S. Bureau of. 306. 

 Molecule, asymmetry of the gas- 

 eous, Gans, 302. 



N 



TT. 



Naturwissenschaften, Vol. 



Dannemann, 149. 

 Newcomb-Engelmann, Astronom\ 



381. 



OBITUARY. 



Bottomlev, T. F., 313. Branner. 



J.C.,313- 



Cimician. G. L.. 314. 

 Dickson. H. X.. 483. 



Guye. P. A.. 483. 



Jordan, M. C, 392. 



Liebisch, T.. 392. 



Mathews, G. B.. 483. McFarland. 



B. W., 314. Moore. B., 392. 

 Verworn, M., 314. 

 Waidner, C. W., 314. Waller. 



A. D., 392. 



Observatory, Leander McCormick, 



312. 

 Oregon, Tertiarv Canidse. Thorpe. 



162. 

 Orla-Jensen, Dairy Bacteriology, 



Osann, B., Eisenhiittenkunde, 146. 



Palache, C, Melanovanadite, Peru, 



195. 

 Paleoclimatologists, dilemma of, 



Sayles, 456. 

 Pan-Pacific Scientific Conference. 



309. 

 Parker, T. J„ Zoology. 386. 

 Passano, L. M., Calculus and 



Graphs, 303. 

 Pauli, W., Colloid Chemistry of the 



Proteins, 475- 

 Pennsylvania, geol. survey, 305. 384. 

 Peru, Carboniferous plants. Berrv. 



189. 

 Physical Constants. 148. 

 — Laboratory. 1920. 149. 

 Physics, Mining and Chemistry, 



Whitaker, 146. 

 Physik, Gehrcke, 96. 

 Pliocyon marshi, change of name, 



Thorpe, 97. 

 Poincare, H., Geometry, 219. 

 Powers, S., gastropod trails in 



Sandstones. 101. 

 Proteins, Colloid Chemistry. Pauli, 



475- 



Q 



Quebec, alnoitic rocks. Bowen. 1. 



R 



Radiation, Two Orbit Theory. 



Bigelow. 382. 

 Raymond, P. E., Seaside notes, 108: 



Ceratopyge fauna in Vest. Xo. 



America. 204. 

 Reptiles of the World, Ditmars. 



387. 

 Resistance, fluid. V leselsberger, 



217. 

 Rhodesia, prehistoric human skull. 



Woodward. 96. 



