CONTENTS. 



Page 



Art. XXVII. — Notes on Living Cvcads. I. On the Zamias 



of Florida ; by G. R. Wieland . . . 331 



XXVIII. — Crystals of Crocoite from Tasmania ; by R. G. 



Van Name 339 



XXIX. — Notes on Unusual Minerals from the Pacific States ; 



by H. W. Turner. 343 



XXX. — Use of the Stereographic Projection for Geographi- 

 cal Maps and Sailing Charts ; by S. L. Penfield 347 



XXXI. — Note on the application of the Phase Rule to the 



fusing points of copper, silver, and gold ; by T. W. 



Richards . _ - 3*77 



XXXII. — Initiative Action of Iodine and of Other Oxidizers 



in the Hydrolysis of Starch and Dextrine ; by F. E. Hale 379 

 XXXIII.— Note on the Possibility of a Colloidal State of 



Gases ; by C. Barus 400 



XXXIV. — Glacial Remains near Woodstock, Connecticut ; 



bv J. W. Eggleston 403 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Determination of Carbon in Steel, Leffler: New 

 Synthesis of Methane, Sebatier and Senderexs, 409 — Calcium silicide, 

 Moissan and Dilthey: Specific Heat, and Volumetric Determination of Vana- 

 dium, Matignon and Monnet, 410. — Presence of Tellurium in American Silver, 

 Vincent: Dissipation of Electrical Charges by Vapor, H.Beggerow: Hertzian 

 "Waves in Storms, M. F. Larroque : Eleccric Waves in Coils, E. Ludin : Meas- 

 urements of Wave Lengths in the Sun's Spectrum, A. Perot and C. Fabry, 

 411. — Spectrum of Gases at High Temperatures. Trowbridge: Wireless Tele- 

 graphy, G. W. deTtjnzelmann : Laws of Radiation and Absorption, D. B. 

 Brace: Beitraege zur chemischen Physiologie und Pathologie, F. Hofmeister, 

 412. 



Geology and Natural History — Geological Commission Cape of Good Hope, G. 

 S. Corstorphine : Western Australia : Sulphur, Oil and Quicksilver in Trans- 

 Pecos, Texas-, W. B. Phillips: Untersuchung einiger Gesteinssuiten gesam- 

 melt in Celebes, C. Schmidt, 413. — Notes on Corals of the genus Acropora 

 (Madrepora Lam.) with new Descriptions and Figures of Types, and of several 

 New Species, A. E. Verrill: Course in Invertebrate Zoology, H. S. Pratt, 

 414. 



Miscellaneous Scientific Intelligence — National Academy of Sciences: American 

 Association for the Advancement of Science, 415. — National Bureau of Stand- 

 ards": The Centenary of Hugh Miller : Ostwald's Klassiker der Exakten Wissen- 

 schaften: British Association Meeting at Glasgow, 1901; Discussion on the 

 Teaching of Mathematics, J. Perry : Basis of Social Relations, D. G. Brinton, 

 416. 



