CONTENTS OF VOLUME XLV. 



Number 265. 



Page 



Art. I. — The Age of the Earth; by Clarence King, With 



Plates I and II 1 



II. — Tertiary Geology of Calvert Cliffs, Maryland ; by Gil- 

 beet D. Harris 21 



III. — "Anglesite" associated with Boleite; by F. A. Genth 32 



IV. — Preliminary Account of the Iced Bar Base Apparatus 

 of the TJ. S. Coast and Geodetic Survey ; by R. S. 

 Woodward . 33 



V. — Some Experiments with an Artificial Geyser; by J. C. 



Graham 54 



VI. — Observations of the Andromed Meteors of November 



23d and 27th, 1892; by H. A. Newton . .. 61 



VII. — Preliminary Notice of a Meteoric Stone seen to fall at 



Bath, South Dakota; by A. E. Foote. With Plate III 64 



VIII. — Appendix — New Cretaceous Bird allied to Hesper- 



ornis ; by O. C. Marsh 81 



IX. — Skull and Brain of Claosaurus; by O. C. Maksh. 



With Plates IV and V 83 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Influence of Foreign substances on the Form, the Size 

 and the Purity of Crystals separating from a solution, Retgebs, 65. — Hesolu- 

 tion of Lactic Acid into Optically active Constituents, Puedie and Walkee: 

 New element Masrium. Richmond and Off, 66. — Freezing points of very dilute 

 Solutions, Raotjlt, 67. — Chemical Lecture Experiments. G. S. Newth: Color 

 Photography, M. G. Lippman: Infra red spectra of the Alkali Metals, B. W. 

 Snow, 68. — Magnetic effect of the Sun upon the Earth, W. Thomson: Sound 

 and Music, J. A. Zahm, 69. 



Geology and Mineralogy — View of the Ice Age as One Glacial Epoch, 70. — Pleis- 

 tocene History of Northeastern Iowa. W. J. McGee, 71. — Note on the paper in 

 the November No. of this Journal ou " A New Oriskany Fauna in New York," 

 S. T. Barrett: Subdivisions of the Azoic or Archaean in Northern Michigan, 

 M. E. Wadsworth. 72. — Geological and Natural History Survey of Minnesota, 

 N. H. Winchell: Final Report of the Pennsylvania Geological Survey, Les- 

 ley: Arkansas Geological Survey : Geological Map of Baltimore and its Vicin- 

 ity: Devonian Fishes of Canada, A. S. Woodwaed, 73.- — Nepheline Rocks in 

 Brazil. 0. A. Deebt: Panama Geology, M. Douville: Geological Map of Scot- 

 land, A. Geieie : Quaternary Carnivores found on the island of Malta: Excava- 

 tion by Glaciers: Chamberlin on the Glacial period, 74. — Mikroskopische 

 Physiographie der petrographisch wichtigen Mineralien, von H. RosenbtjscH: 

 Gesteine de Kcnatonanische West Cordillere, M. Belowsky: Chemical Contri- 

 butions to the Geology of Canada G. C. Hoffmann, 75. — Presence of Magne- 

 tite in certain Minerals and Rocks. Liversidge: Manual of Qualitative Blow- 

 pipe Analysis and Determinative Mineralogy, F. M. Endlich, 76. 



Miscellaneous Scientific Intelligence — Geminid Meteors of Dec. 1 1, 1892 : La Planete 

 Mars et ses Conditions d'Habitabilite, Camille Flammaeion. 77. — Investiga- 

 tion of the Coral Reefs of the "West Indies, A. Agassiz: Gelatine slides for 

 lantern projection. W. J. Waggener: Transactions of the Texas Academy of 

 Science: Die Klassiker der exakten Wissenschaften, W. Ostwald, 78. — Royal 

 Society of London, 79. 



Obituary — John Strong Newbeery, 79. — Sie Richard Owen, 80. 



