CON T ENTS 



Page 



Art. XIX. — A Universal Switch for Thermoelement Work 



and Other Potential Measurements; by W. P. White.. 307 



XX. — The Edo-ewood Limestone of Pike County, Missouri ; 



by R. R. Rowley 317 



XXI. — Description of Large Cylinders of Scoriaceous Dia- 

 base in the Normal Holyoke Diabase; by B. K. Emerson 321 



XXII. — The Charnockite Series of Igneous Rocks; by H. S. 



Washington 323 



XXIII. — The Determination of Vanadium by Cupferron, 



C 6 H 6 N(ONH 4 ).NO; by W. A. Turner 339 



XXIV. — Description of a New Genus and Species of Fossil 



Crab from Port Town send, Wash. ; by Mary J. Rathbun 344 



XXV. — Xote on a Palaeoniscid Fish from a Permian Forma- 

 tion in South Dakota; by L. Hussakof 347 



XXVI. — On a Gallium-Indium Alloy; by P. E. Browning 



and H. S. Fiiler _. 351 



XXVII. — Studies of Brazilian Favas ; by O. C. Farrington 355 



Arthur Williams Wright, 1836-1915 361 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Eecovery of Gallium from Spelter in the United 

 States, W. F. Hillebrand and J. A. Scherrer: Proposed Method for the 

 Profitable Utilization of Waste Sulphite Liquor, H. V. Tartae, 367. — 

 Organic Chemistry, P. E. Spielmann : Catalysis and its Industrial Appli- 

 cations, E. Joblin : An Introduction to the Physics and Chemistry of 

 Colloids, E. Hatschek, 368. — Historical Introduction to Mathematical 

 Literature, G. A. Miller: The Universe and the Atom, M. Erwin, 369. 



Geology and Mineralogy— thirty-sixth Annual Report of the Director of the 

 United States Geological Survey, G. O. Smith: Publications of the United 

 States Geological Survey, G. O. Smith. 371. — West Virginia Geological 

 Survey, I. C. White: Geology and Underground Waters of the Northern 

 Llano Estacado, C. L. Bakee, 373. — Geography of the Fox-Winnebago 

 Valley, R. H. Whitbeck: Geology and Mineral Resources of Jefferson Co., 

 Ky., C. Butts, 374. — Fauna of the Morrow Group of Arkansas and Okla- 

 homa, K. F. Mather: Mississippi, its Geology, Geography, Soils and 

 Mineral Resources, E. N. Lowe: The Fauna of the Upper Devonian in 

 Montana, Part 2, W. P. Haynes: Origin of the Zinc and" Lead Deposits of 

 the Joplin Region, C. E. Siebenthal, 375. — Meteorites ; their structure, 

 etc., 0. C. Farrington. 376: The Data of Geochemistry, F. W. Clarke, 

 376. — Guida al Corso di Mineralogia; Mineralogia Generale, G. dAchiaedi: 

 School of Mines and Metallurgy, U. of Mo. Bulletin, J. Cunningham, 377. 



Miscellaneous Scientific Intelligence — Year Book, Carnegie Institution of 

 Washington. R. S. Woodward, 377. — Repor'' on progress and condition of 

 the U. S. National Museum, R. Rathbun, 878. — Report of the Librarian, 

 Library of Congress, H. Putnam: The John Grerar Library. Clement W. 

 Andrews: Modes of Research in Genetics, R. Peael, 379. — Scientific and 

 Applied Pharmacognosy, H. Keaemee: Methods in Plant Histology, C. J. 

 Chambeelain, 380. — Laboratory Manual of Horticulture, G. W. Hood : 

 Bacteriological Methods in Food and Drugs Laboratories, A. Schneider: 

 Publications of the Astronomical and Astrophysical Society of America : 

 Wyoming Historical and Geological Society, 381. 



Obituary— C. R. Markham : W. Turner : C. W. Hates : I. P. Pavlov : 

 P. Chappuis, .382. 



