VIII CONTENTS 



Number 18. 



Page 



Art. XXXVII. — A Critical Review of Chamberlin's Ground- 

 work for the Study of Megadiastrophism ; byW. F. Jones, 393 



Art. XXXVIII. — Some Complex Chlorides Containing Gold. 



III. A New Cesium- Auric Chloride; by H. L. Wells, 414 



Art. XXXIX. — A Chromophore Grouping of Atoms in In- 

 organic Triple Salts, and a General Theory for the Cause 

 of the Colors of Substances; by H. L. Wells, 417 



Art. XL. —Some Tertiary Carnivora in the Marsh Collection, 



with Descriptions of New Forms; by M. R. Thorpe, . . 423 



Art. XLI. — The Dilemma of the Paleoclimatologists ; by R. 



W. Sayles, Harvard University, 456 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics. — Heats of Neutralization of Potassium Sodium and 

 Lithium Hydroxides, etc., T. W. Eichards and A. W. Eowe: Eapid 

 Iodometric Estimation of Copper and Iron in Mixtures of their Salts, I. W. 

 Wark, 474. — Introduction to Physical Chemistry, J. Walker: Colloid 

 Chemistry of the Proteins, W. Pault, 475. — The Aurora Line of the Night 

 Sky: The Color of the Sea, Raman, 476. — Proportionality of Mass and 

 Weight, C. F. Brush, 477. —The Teaching of General Science, W. L. 



ElKENBERG, 478. 



Geology and Mineralogy. — Hesperopithecus, the first anthropoid primate found 

 in America, H. F. Osborn, 478. — Shallow- water Foraminifera of theTortugas 

 Region, J. A. Cushman: Fossil Echini of the West Indies, E. T. Jackson: 

 Triassic Fishes from Spitzbergen, E. A. S. Stensio: The Miocene of 

 Northern Costa Eica, A. A. Olsson, 479. — The Geology of the Corocoro 

 Copper District of Bolivia, J. T. Singewald, Jr., and E. W. Berry: A 

 Guide to the Fossil Eemains of Man, etc. : Illinois Geological Survey, F. 

 W. DeWolf, 480. — Illinois State Water Survey: Geological Survey of 

 Western Australia, A. Gibb Maitland, 481. 



Miscellaneous Scientific Intelligence. — Washington meeting of the National 

 Academy of Sciences: Considerations sur l'Etre vivant, 482. — Fiinf Eeden 

 von Ewakl Bering: Board of Scientific Advice for India, 483. 



Obituary.— P. A. Guye: H. N. Dickson: G. B. Mathews, 483. 



Index: 484. 



