CONTENTS 



Art. XXXIX. — The Mesozoic Sediments of Southwestern 



Oregon ; by J. S. Diller ._ 401 



XL. — Studies in the Cyperacese ; by Theo. Holm 422 



XLI. — Contributions to the Geology of New Hampshire ; 

 No. Ill, On Red Hill, Monltonboro ; by L. V. Pirsson 

 and H. S. Washington 433 



XLII. — A Method for the Qualitative Separation and Detec- 

 tion of Ferrocyanides, Ferricyanides and Sulphocyan- 

 ides ; by P. E. Browning and H. E. Palmer 448 



XLIII. — Irvingite, a New Variety of Lithia-mica ; by S. 



Weidman 451 



XLIV. — The Composition of Molybdite from Arizona ; by 



F. N. Guild 455 



XLV. — On Climatic Conditions at Nome, Alaska, during 

 the Pliocene, and on a new Species of Pecten from the 

 Nome Gold-bearing Gravels; by W. H. Dall 457 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Platinum Amalgam, Moissan : Explosion-Limits of 

 Certain Gas Mixtures, N. Tecltj : New Method of Forming Organic Com- 

 pounds of Phosphorus, Berthaud, 459. — Oeuvres Completes de J.-C. 

 Galissard de Marignac, E. Adok : Outlines of Industrial Chemistry, F. H. 

 Thorp : Note on the Decay of Ions in the Fog Chamber, C. Barps, 

 460. — Electric Conductivity, K. Badeker : Interference of Wireless Tele- 

 graph Waves, F. Kiebitz : Pays of Positive Electricity, J. J. Thomson, 

 461. — Electrons, 0. Lodge, 462. — La Moderna Teoria dei Fenomeni Fisici, 

 A. RigHi : La Ionizzazione e la Convezione Elettrica, L. Amaduzzi, 463. 



Geology and Natural History — Geological Survey of Western Australia, the 

 Pilbai-a Goldfield, A. G. Maitland, 463. — The Prospects of Obtaining 

 Artesian Water in the Kimberley District, E. L. Jack : New Zealand Geo- 

 logical Survey, 464. — Cape of Good Hope Geological Commission : Stone 

 Implements of South Africa, J. P. Johnson, 465. — Ore Deposits of the 

 Silver Peak Quadrangle, Nevada, J. E. Spurr : Geology and Gold Deposits 

 of the Cripple Creek District, Colorado, W. Lindgren and F. L. Eansome, 

 466. — The Genus Encrinurus, A. W. Vogdes : Pelmatozoa from the Chazy 

 Limestone of New York, G. H. Hudson : Jurassic Fossils from the Black 

 Hills, R. P. Whitfield and E. O. Hovey : Some New Devonic Fossils, J. 

 M. Clarke : The Eurypterus Shales of the Shawangunk Mountains, J. M. 

 Clarke, 467. — " Organbildende Substanzen " unci ihre Bedeutung fur die 

 Vererbung, C. Rabl : Die Vererbung ervorbener Eigenschaften, E. Rig- 

 nano, 468. — Guide for Laboratory and Field Work in Zoology, H. R. Lin- 

 ville and H. A. Kellet : Pierre- Andre Latreille, L. de Nussac : Einfluss 

 desKlimas auf den Bau der Pflanzengewebe, C. Holterhann, 469. 



Miscellaneous Scientific Intelligence — Carl Friedrich Gauss Werke, 470. — 

 Temperature of Mars, P. Lowell : The Evolution of Matter, Life and 

 Mind, W. S. Duncan ; Esperanto in Twenty Lessons, C. S. Griffin : 

 Wellcome's Photographic Exposure Record, 471. 

 Index Vol. XXIII, 472. — >, 



£J3^ 



