548 



INDEX 



*The simultaneous crystallization 



of calcite and certain sulfides of 

 iron, copper and zinc. 504. 



*Two varieties of calciovolborthite 



(?) from eastern Utah. 503. 



Data on the intrusion tempera- 

 ture of the Palisade diabase. 389. 



— — ^Media of high refraction for refrac- 

 tive index determinations with the 

 microscope; also, a set of perma- 

 nent standard media of lower re- 

 fraction. 35. 



*Media of high refraction for use 



with the microscope. 48. 



*Mixtures of amorphous sulfur 



and selenium as immersion media 

 for the determination of high re- 

 fractive indices with the micro- 

 scope. 114. 



Two varieties of calciovolborthite 



(?) from eastern Utah. 138. 



Moore, Riley B. *Observations in 

 St. Lawrence Island. 129. 



MoREY, George W. *The hydrother- 

 mal formation of silicates. 520. 



Mueller, E. F. *New calorimetric 

 resistance thermometers. 296. 



MuLFORD, F. L. *Lawn soils and 

 lawns. 254. 



Nelson, E. K. *Tests for absinthe. 

 261. 



Newton, Philip. *Negritos of the 

 Philippines. 32. 



Niggli, Paul. *The general principles 

 underlying metamorphic processes. 

 527. 



*The hydrothermal formation of 



silicates. 520. 



*The phenomena of equilibrium 



between silica and the alkali car- 

 bonates. 522. 



Norton, J. B. *Some interesting 

 facts concerning the genus Aspara- 

 gus. r32. 



Orton, W. a. Environmental influ- 

 ences in the pathology of Solanum 

 tuberosum. 180. 



Osborne, X. S. *Latent heat of 

 fusion of ice. 453. 



Nutting, P. G. On the absorption of 

 light in heterogeneous media. 322. 



Paige, Sidney. *Bearing of Pre- 

 Cambrian structure on the origin 

 of the Homestake ore body. 173. 



Palache, C. Hodgkinsonite, a new 

 mineral from Franklin Furnace, 

 N. J. 474. 



Palmer, A. H. *Atmospheric humid- 

 ity as related to haze, fog, and 

 visibility at Blue Hill. 361. 



Parker, E. H. *Analysis of certain 

 Pacific coast kelps. 262. 



Parker, G. H. *The sense of smell in 

 fishes. 295. 



Peters, O. S. *Electrolysis in plain 

 and reinforced concrete. 361. 



Phalen, W. C. *Kenova, Ky., West 

 Virginia and Ohio, folio. 455. 



Piper, C. V. *The Filipinos and the 

 problem of their government. 128. 



PoGUE, J. E. *Ores of the Mount 

 Lyell copper district of Tasmania. 

 344. 



Priest, Irwin G. *A photometric 

 error sometimes accompanying the 

 use of a pair of nicols, and a pro- 

 posal for its elimination. 298. 



*A simplified formula for the 



change in order of interference due 

 to changes in temperature and 

 pressure of air. 150. 



Rabak, Frank. *Some effects of re- 

 frigeration on sulfured and unsul- 

 fured hops. 120. 



*Wild volatile-oil plants and their 



economic importance. I. Black 

 sage; II. Wild sage; III. Swamp 

 bay. 23. 



Reid, F. R. *Studies in soil catalysis. 

 255. 



Richards, Ralph W. *Niter near 

 Melrose, Mont. 301. 



Robinson, W. O. *Manganese as a 

 fertilizer. 255. 



• Abstracts. 



