CONTENTS TO VOLUME XVII. 



Number 97. 



Page 

 Art. I. — Variation of Potential along the Transmitting 



Antenna in Wireless Telegraphy ; by C. A. Chant 1 



II. — Studies of Eocene Mammalia in the Marsh Collection. 



Peabody Museum ; by J. L. Woetman - . _ r 23 



III. — Initial Stages of the Spine on Pelee ; by T. A. Jaggar, 



Jr.._ - 34 



IV. — Action of the Halogen Acids upon Vanadic Acid ; by 



F. A. Gooch and R. W. Curtis ._ .-, _ 41 



V. — Development of some Paleozoic Bryozoa ; by E. R. 



Cumings _ - 49 



VI. — Effects on Rare Earth Oxides produced by Radium- 

 Barium Compounds and on the Production of Perma- 

 nently Luminous Preparations by Mixing the Latter 

 with Powdered Minerals ; by C. Baskeryille and G. 

 F. Kunz... _ 79 



VII. — Numbers of NuclQkJprq.duc.ed bv Shaking Different 



Liquids and Allied Results ; by 'C. Barus 81 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Titrations with Potassium Iodate, L. W. Andrews, 

 85. — Oxidation of Platinum, L. Wohler : Production of High Vacua for 

 Distillation, E. Erdman, 86. — Method of Crystallizing difficultly Soluble 

 Substances, A. de Schulten .• Fractional Distillation, S. Young : Elektro- 

 Metallurgie, W. Borchers : New Form of Galvanometer, W. Einthoven, 

 87. — Magnetic Properties of Systems of Corpuscles describing Circular 

 Orbits, J. J. Thomson, 88. — Laboratory Physics, D. C. Miller : Physical 

 Laboratory Manual for Secondary Schools, S. E. Coleman, 89. — Elements 

 of Electromagnetic Theory, 13. J. Barnett, 90. 



Geology and Mineralogy — United States Geological Survey, 90. — New York 

 State Museum : Geology of Worcester, Mass., J. H. Perry and B. K. 

 Emerson, 91. — Paleontology and Stratigraphy of the Marine Pliocene and 

 Pleistocene of San Pedro, California, R. Arnold : Postglacial and Inter- 

 glacial (?) Changes of Level at Cape Ann, Massachusetts, R. S. Tarr ; 

 With a Note on the Elevated Beaches, J. B. Woodward, 92. — Latest and 

 Lowest Pre-Iroquois Channels between Syracuse and Rome, New York, H. 

 L. Fairchild : Contributions to the Tertiary Fauna of Florida, etc., W. 

 H. Dall : Spinel Twins of Pyrite, W. Nicol : Ramosite not a Mineral, L. 

 Mel. Luquer, 93. — List of New York Mineral Localities, H. P. Whitlock, 

 94. 



Miscellaneous Scientific Intelligence— International Catalogue of Scientific 

 Literature, 94. — National Academy of Sciences ; Astronomical Observatory 

 of Harvard College, E. C. Pickering, 95. — Beitrage zur Chemischen 

 Physiologie, F. Hofmeister, 96. 



Obituary — Herbert Spencer, 96. 



