CONTENTS OF VOLUME XXXVI. 



Number 211. 



Page 



Art. I. — Relation which the former Orbits of those Meteor- 

 ites that are in our collections and that were seen to fall, 

 had to the Earth's Orbit ; by H. A. N"ewton 1 



III. — Summit Crater of Mt. Loa in 1880 and 1885; by W. 



T. Beigham and J. M. Alexander 33 



IV. — Explanation of the action of a Magnet on Chemical Ac- 

 tion ; by H. A. Rowland and L. Bell 39 



V. — Wave-like Effects produced by the Detonation of Gun- 



Cotton ; by C. E. Muxeoe. With Plate IY 48 



VI. — Mode of Reading Mirror Galvanometers, etc. ; by R. 



W. WlLLSOX _ 50 



VII. — Bertrandite from Mt. Antero, Colorado ; by S. L. 



Penfield . 52 



VIII. — Some Localities of Post-Tertiary and Tertiary Fossils 



in Massachusetts ; by W. W. Dodge 56 



IX. — A Cordierite Gneiss from Connecticut ; by E. O. 



Hovey 57 



X.— The Flow of Solids : a Note ; by W. Hallock 59 



SCIENTIFIC INTELLIGENCE. 



iment to illustrate Valence, Lepsius : Action of Hydrogen sulphide on Arsenic 

 acid, Branner and Tomioek, 62. — Elements and Meta-elements, Crookes, 63. — 

 Measurement of High Potential, A. Voller. 66. — Fluorescence, B. Walter: 

 Griinwald's hypothesis in spectrum analysis : Penetration of Daylight in 

 the water of Lake Geneva and of the Mediterranean. Fol and Sarasln, 67. — 

 Treatise on Electricity and Magnetism, E. Mascart and J. Joubert, 68. 

 Fauna and Flora of the Trias of New Jersey and the Connecticut Yalley, 

 Newberry, 70. — Archaean areas of Northern New Jersey and Southeastern 

 New York, N. L. Britton : Annual Report of the State Geologist of New 

 Jersey for the year 1887 : Archaean Plant : Organization of the Fossil Plants of 

 the Coal Measures, W. C. Williamson', 71. — Einleitung in die Palaophytologie 

 vom botanischen Standpunkt aus, Solms-Lactbach : Das Anlitz der Erde von 

 Eduard Suess, 72. — Chert, G. J. Hinde : Dumortierite from a new locality, 

 M. Le>y and Lacroix : Zircon from North Carolina : Seventh Annual Report 

 of the State Mineralogist of California for the year ending Oct. 1, 1887, W. 

 Irelan : Contributions to the Mineralogy of the Pacific Coast, W. Lindgren, 

 73. — Materialien zur Mineralogie Russlands, von Kokscharow : Der Meteorit 

 von Nowo-Urei, von M. Jerofeieff aud P. Latschixoff, 74. 



Botany and Zoology — Recent advance in Vegetable Histology, A. Dumont, 75, A. 

 LeBlois, 76. — Botanical Works of the late George Kngelmann, 76. — Excursions 

 Zoologiques dans les Isles de Fayal et de San Miguel, J. de Guerne, 77. 



Miscellaneous Scientific Intelligence — Meeting of the American Association for the 

 Advancement of Science, for 1888 : Annual Report of the Board of Regents of 

 the Smithsonian Institution : Lick Observatory, University of California, 78. — 

 Matter of interest to Societies, Libraries and Geologists: International Geo- 

 logical Congress : Hayden Memorial Geological Fund: Medals of the Geological 

 Society of London, 79. 



