INDEX. 



513 



Matthew, W. D., Lower Miocene 

 fauna from So. Dakota, 379. 



Mendelism, Punnett, 508. 



Mercalli, G., Active Volcanoes of the 

 Earth. 282. 



Merriam, J. C, Tertiary formations 

 of the John Day region, 377. 



Metals, internal temperature gra- 

 dient, Serviss, 451. 



Michael, H. A., Studies in Plant 

 Chemistry, etc., 90. 



MINERALS. 



Albite, 255. Anhydrite twin crys- 

 tal, 487. 



Benitoite, California, 448. Bra- 

 voite, Psru, 151. 



Calcite, New Jersey, 426. Calo- 

 mel, Texas, 273. Carlosite, Cali- 

 fornia, 448. Chalmersite, Brazil, 

 255. Chiastolite, So. Australia, 

 183. Chlorite, 255. 



Diamonds, Arkansas, 275. 



Eglestonite, Texas, 271. Evansite, 

 Idaho and Alabama, 155. 



Gold nuggets from New Guinea, 

 Liversidge, 505. Gorceixite, Bra- 

 zil, 182. 



Harttite, Brazil, 182. Hellandite, 

 Norway, 182. Hematite, 255 ; 

 artificial crystals, 485. 



Kleinite, Texas, 261. 



Manganotantalite, Maine, 154. Mer- 

 cury, native, Texas, 274. Mon- 

 troydite, Texas, 269. 



Nepouite, New Caledonia, 182. 



Olivine in serpentine of Chester, 

 Mass., 491. 



Patronite, Peru, 141. Phenacite, 

 Gloucester, Mass.. 252. Purpur- 

 ite, So. Dakota, 152. Pyrite, 254. 



Quisqueite, Peru, 141. 



Rutherfordine, East Africa. 181. 



Siderite, 253. Sphalerite, 254. 



Terlinguaite, Texas, 270. Tour- 

 maline, Elba, 157. 



Zinnwaldite, Alaska, 158. Zoisite 

 crystals, Chester, Mass., 249. 

 Minerals, determination of the hard- 

 ness, Kip, 23. 



— measurement of the optic axial 

 angle of, Wright, 317. 



— mercury, from Texas, Hillebrand 

 and Schaller, 259. 



— of Southern Norway, Brbgger, 282. 



— Tables of, Penfield, 448. 

 Mixter, W. G., combustion of silicon 



and silicon carbide, 130. 

 Munroe, Chas. E., artificial hematite 

 crystals, 485. 



N 



New Mexico, Mississippian forma- 

 tions, Gordon, 58. 

 Nitrogen spectrum, Lawton, 101. 

 Nobel prizes in 1904, 508. 

 Nuclei, decay of ionized, Barus, 419. 



OBITUARY. 



Atwater, W. A., 382. 

 Heilprin, A., 184, 284. 

 Loewy, M., 450. 

 Safford, J. M., 284. 



Occlusion of oxygen, Szivessy, 442. 



Optic axial angle of minerals, meas- 

 urement, Wright, 317. 



Ordway, J. M., waterglass, 473. 



Osborn, H. F., skeleton of Arab 

 horse, 380 ; Tertiary mammal 

 horizons of America, 504. 



Osborne, R. W., potassium alu- 

 minium sulphate, 167. 



Ozone, action on metallic silver, 

 Manchot and Kampschulte, 373. 



Palache C, mineral ogical notes, 249 ; 



occurrence of olivine, 491. 

 Penfield, S. L., Tables of MiDerals, 



448. 

 Phelps, I. K., preparation of for- 



mamide, 173 ; action of dry 



ammonia, 479. 

 — and M.A., use of zincchloride, 



194 ; preparation of acetamide, 



429. 

 Phosphorescence, power of positive 



rays to produce, Kunz, 499. 

 Physiologie, Beitrage zur cheini- 



schen, Hofmeister, 91. 

 Physiology, Hough and Sedgwick, 



448. 

 Polarization, Fizeau's research on 



the change of azimuth, 498. 

 Positive rays, power to produce 



phosphorescence, Kunz, 499. 

 Punnett, R. C, Mendelism, 508. 



Radio-active element, new, Bolt- 

 wood, 370. 



Radio-activity of thorium salts, 

 Boltwood, 93. 



Randall, D. L., behavior of molyb- 

 dic acid, 313. 



