Vlll CONTENTS. 



Xumber 264. 



Page 



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

 stone ; by W. A. Tarr 409 



XXXVI. — Ionization and Polymerization in Cadminm Iodide 



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



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



Shannon 469 



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



Dinosaurs; by R. S. Lfll , 4*71 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics- Colorimetric Determination of Manganese by 

 Oxidation witli JPeriodate, H. H. Willard and L. H. Greathouse : 

 Preparation of Cj^anamide from Calcinm Cyanamide, E, A. Weriver, 

 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 

 Eadiation: Colored Flames of High Lumincsit}^, G. A. Hemsalech, 482. — 

 X-Eay 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. 

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



