c o N T E :sr T s. 



Page 



Art. XVII.— The Crystal Structure of Alabandite (MnS); 



by R. W. G. Wtckoff, 239 



Art. XVIII. — Later Cenozoic Mammalian Remains from 



the Meadow Valley Region, Southeastern Xevada ; 



by C. Stock, 250 



Art. XIX. — The Classification of Igneous Rocks — A Study 



for Students ; by L. V. Pirssox, . 265 



Art. XX. — Studies in the Cyperacese; by Theo. Holm. 



Carices aeorastachy^ : Crinitse nob., Apert^e nob., 



and Magnificae nob. (With 8 figures drawn from 



nature by the author, 285 



Art. XXI. — The Stratigraphy of Easteru Xew Mexico — a 



Correction ; by J. L. Rich, 295 



SCIEN'TIFIG INTELLIGENCE. 



Chemistry and Physics. — A New Eeaction for Ammonia, and its Application 

 for the detection of Nitrogen in Organic Substances, C. D. ZE^'GHELIS, 398. 

 — The Quantitative Separation of Arsenic, Antimony and Tin, F. L. Hahn 

 and P. Philippi, 299. — Chemical Reactions and their Equations, I. W. D. 

 Hackh : Food Products, Their Source, Chemistry and Use, E. H. S. 

 Bailey: Discussion of Isotopes, 300. — Wireless Telegraphy and Telephony, 

 L. B. Turner, 302. 



(?eo/9!7i/. —The White River Badlands, C. C. O'Harra, 303.— Some Anticlines of 

 Routt County, Colorado, R. D. Crawford, K. M. Willson. and V. C. 

 Perixi : Permian Salt Deposits of the South-central United States, N. H. 

 Dartox: Interrelations of the Fossil Fuels, J. J. Stevenson: Foraminifera 

 of the Philippine and adjacent Seas, J. A. Ccshman, 304.— The Direction 

 of Human Evolution, E. Gr. Conklin, 305.— Wissenschaftliche Forschungs- 

 berichte; Naturwissenschaftliche Reihe, Bd. II, All-^emeine Geologie uad 

 Stratigraphie, A. Born: Mineralogische Tabellen, P. Groth and K Mie- 

 leitxer: Lehrbuch der Mineralogie (G. Tschermak), F. Becke, 306. 



Miscellaneous Scientific Intelligence. — Elements of Map Projection with Appli- 

 cations to Map and Chart Construction, C. H. Deetz, 306. — Secrets of 

 Earth and Sea. R. Lankester. 307. — Observations on the Living Gastro- 

 pods of New England, E. S. Morse: Elements of Bond Investment, A. M. 

 Sakolski, 308, 



