CONTENTS. 



Page 

 Art. XXXY. — Origin of the Chert in the Burjington Lime- 

 stone; by W. A. Tare 409 



XXXVI. — Ionization and Polymerization in Cadmium Iodide 



Sohitions; by R. G. Van Name and W. G. Brown 453 



XXXVII.— Famatinite from Goldfield, Nevada; by E. V. 



Shannon _ _ 469 



XXXVIIL— On the Functions of the " Sacral Brain " in 



Dinosaurs; b}^ R. S. Lull 471 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics— Colorirnetric Determination of Manganese by 

 Oxidation with Periodate, H. H. Willard and L. H, Greathouse : 

 Preparation of Cyanamide from Calcium Cyanamide, E. A. Werner, 

 478. — New Method of Separating Tin and Tungsten, M. Travers: Yellow 

 Mercuric Oxide as a Standard in Alkalimetry, G. Incze, 479. — New Oxy- 

 chloride of Tin, H. F. Keller : Equilibrium Temperature of a Body 

 Exposed to Radiation, C. Fabry, 480. — Numerical Application; Solar 

 Radiation: Colored Blames of High Luminosity, G. A. Hemsalech, 483. — 

 X-Ray Band Spectra, de Broglie, 484. 



Mineralogy and Geology — New Mineral Names, W. E. Ford, 484. — Descrip- 

 tive Mineralogy, W. S. Bailey, 486. — Wave Work as a Measure of Time: 

 A Study of the Ontario Basin, A. P. Coleman, 487. 



Miscellaneous Scientific Intelligence — National Academy of Sciences: Ameri- 

 can Association for the Advancement of Science: Negro Education, T. J. 

 Jones, 487.— Science and Learning in France, J. H. Wigmore, 488. 



Index, 489. 



313 



