CONTENTS TO VOLUME XXIII. 



Number 133. 



Art. I. — Colombian Meteorite Localities : Santa Rosa, Ras- 



gata, Tocavita ; by H. A. Ward - - 1 



II. — Occurrence of Facetted Pebbles on the Central Plateau 



of Brazil ; by M. A. R. Lisboa 9 



III. — Mineralogieal Notes ; by F. A. Canfield .. 20 



IV. — Chemical Composition of Amphibole ; by S. L. Pen- 

 field and F. C. Stanley . . 23 



V. — Notes on the Relation of the two genera of tubicolous 

 Annelids, Vermilia Lamarck, 1818, and Pomatoceros 

 Philippi, 1844 ; by K. J. Bush : 52 



VI. — Chalcop} T rite Crystals from Arakawa, Japan ; by W. E. 



Ford 59 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Vaporization of Solid Substances at Ordinary Tem- 

 perature, C. Zenghelis : Investigations upon the Eare Earths, Auer 

 von Welsbach : Ee-determination of the Atomic Weight of Potassium, 

 T. W. Bichards and A. Staehler, 61.— Qualitative Analysis, W. C. 

 Morgan : History of Chemistry, F. P. Armitage : History of Chemistry, 

 E. v. Meyer : Absorption of Light, E. Muller and E. A. Houstoun, 62. — 

 Doppler Effect in Canal Streams, J. Stark : Oscillatory Discharge of a 

 Polarized Cell, F. Kruger, 63. — Electric Waves, P. Prude : Fluorescence 

 and Magnetic Eotation Spectra of Sodium Vapor and their Analysis, E. W. 

 Wood : Eadioactive Transformations, E. Eutherford, 64. — Das elektrische 

 Bogenlicht ; Seine Entwicklung und seine physikalischen Grundlagen, W. 

 B. v. Czcdnochowski, 65. 



Geology and Mineralogy — United States Geological Survey, 65. — Origin and 

 Structure of the Eoxbury Conglomerate, G. E. Mansfield : Geology of the 

 Bighorn Mountains, N. H. Darton : Glacial History of Nantucket and 

 Cape Cod, J. Howard Wilson, 67. — Les Variations Periodiques des 

 Glaciers, H. F. Eeid et E. Mdret : Eoman Comagmatic Eegion, H. S. 

 Washington, 68. — Geology and Petrography of Mt. Yamaska, Province 

 of Quebec, G. A. Young, 09. — Geology of the Volcanic Area of the East 

 Moreton and Wide Bay Districts, Queensland, Australia, H. I. Jensen : 

 Building and Ornamental Stones of North Carolina, T. L. Watson and F. 

 B. Lanet, 70. — Clays ; their Occurrence, Properties and Uses with espe- 

 cial reference to those of the United States, H. Eies : Palasozoic Fossils, 

 J. F. Whiteaves, 71. — Bryozoan Fauna of the Eochester shale, E. S. 

 Bassler : Fossil Fauna and Flora of the Florissant (Colorado) shales, T. 

 D. A. Cockerell : Geological Survey of Ohio : Handbuch der Mineral- 

 ogie, C. Hintze. 



Miscellaneous Scientific Intelligence. — Integrative Action of the Nervous Sys- 

 tem, C. S. Sherrington. 73. — Eeports of the U. S. National Museum for 

 the years ending June 30, 1905 and June 30, 1906, E. Eathbun : Eeport of 

 the Superintendent of the Coast and Geodetic Survey, from July 1, 

 1905, to June 30, 1906, 74. — Annals of the Astronomical Observatory of 

 Harvard College : Carnegie Institution of Washington, 75,- — American 

 Association : Amerikanisches Hochschulwesen : Eindriicke und Betracht- 

 ungen, W. Bottger : Notes on Adirondack Mammals, with Special Eefer- 

 ence to the Furbearers, M. Grant : Annual Eeport of the Director of 

 the Weather Bureau of the Philippine Islands for the year 1904 : Science 

 Bulletin of the Museum of the Brooklyn Institute of Arts and Sciences, 76. 



