514 Scientific Intelligence. 



"William H. Brewer: Atmospheric dust and aqueous precipitation in Arctic 

 regions. 



Seth C. Chandler : Further researches on the polar motion. 



Thomas C. Mendenhall: The relation of gravity to continental elevation; 

 The legal units of electrical measure. 



Charles S. Hastings : On derived equations in optics ; On a method of elimi- 

 nating secondary dispersion, using ordinary silicate glasses only. 



Thomas B. Osborne: The chemical nature of diastase. 



Charles E. Beecher: Some features in the development of brachiopods. 



Henry S. Williams : On the presence of Devonian fossils in strata of Car- 

 boniferous age. 



John S. Billings: On the influence of insolation upon Culture Media, and of 

 desiccation upon the vitality of the bacillus of typhoid, of the Colon bacillus, and 

 of the Staphylococcus aureus. 



William L. Elkin : Report on photographing meteors. 



Charles A. White: Biographical memoir of F. V. Hayden. 



A. E. Verrill: Geographical and bathymetrical distribution of the deep sea 

 echinoderms, discovered off the American coast, north of Cape Hatteras. 



A. A. Michelson : On the effect of pressure in broadening spectral lines. 



James Hall: Remarks upon the progress of work upon a handbook of the 

 brachiopoda ; Note upon the occurrence and distribution of the dictyospongidas 

 in the Devonian and Carboniferous formations. 



S. P. Lang-let : Infra red spectrum. 



J. W. GiBBS: On a certain theorem in theoretical dynaaiics. 



Boston Society of Natural History, Proceedings, vol. xxvi, Boston, 1894, — 

 several interesting geological papers have appeared in the recently issued parts 

 of this volume. 



Parts II— III contain: 



Facetted pebbles on Cape Cod, Mass, by W. M. Davis, pp. 166-175, with 

 plates I-II. 



Some typical Eskers of Southern New England, by J. B. Woodworth, pp. 

 197-220. 



On the distribution of Earthquakes in the United States since the close of 

 the Glacial Period, by N. S. Shaler. pp. 246-256. 



The geographical development of alluvial river terraces, by R. E. Dodge, pp. 

 257-273. 



The preglacial channel of the Genessee River, by A. W. Graham, pp. 359- 

 369. 

 Occasional papers, IV. 



Geology of the Boston Basin, by Wm. 0. Crosby, vol. i, Part II, Hingham, 

 pp. 179-288, with plates 6, 7 and 8. 1894. 



Geotektonische Probleme ; von A. Rothpletz, p. 175, fig. 107, plates 10 (E. 

 Koch), Stuttgart, 1894. 



Die Maschinellen Hilfsmittel du Chemischen Technik; von A. Pamicke, p. 320, 

 fig. 327 (H. Bechhold). Frankfurt, 1894. 



University of California, Bulletin of Dept. of Geology. Vol.1. Berkeley, 1894. 



No. 5. The Lherzolite-Serpentine and Associated Rocks of the Potrero, San 

 Francisco; by Charles Palache, pp. 161-179. 



No. 6. On a rock from the vicinity of Berkeley, containing a new soda Am- 

 phibole; by Charles Palache. pp. 181-191, and two plates. 



No. 7. The Geology of Angel Island; by F. Leslie Ransome (with a note on 

 the Radiolarian chert from Angel Island, etc., by G. J. Hinde), pp. 193-240, 

 plates 12-14. 



OBITUARY. 



William Topley, an active promoter of geology in Great 

 Britain and for several years in charge of the Jermyn street office 

 of the Geological Survey in London, died at the age of 53, on the 

 30th day of September. 



