20 DONS. — 20 JUIN AD 7 NOVEMBRE 1887 



T. XXIX, 1885. A catalogue of scientific and technical Periodicals 

 (1663 to 1882), by H. Garrington Bolton. 



T. XXX, 1886. Scientific Wrilings of Joseph Henry. Vol. I et II. 



Annual report of the Board of Régents of the — . Part. I, to July 

 1883-1886. 



Vulcanology and Seismology, by G. G. Rockwood, p. 471. 

 Volcanics éruptions and Earthquakes in Iceland wilhin historié tirneSj by G. H. 

 Boehmer, p. 493, 

 Mineralogy, by Prof. E. S. Dana, p. 686. 

 Record of North american Invertebrate Palaeontology, by J. B. Marcou, p. 713. 



— Department of the Interior. — Bulletin of the United States geo- 

 logical Survey. In-8°, 1886-1887. 



N° 34. Ch. A. White. — On the relation of the Laramie Mollnscan Fauna to 

 the succeeding fresh-water Eocene and other groups, 5 pi. 



N° 35. Cari Barus and Vincent Strouhal. — Physical Properties of the Iron- 

 Caburets. Third paper. (Preceding papers on the Iron-Carburets in Bulletins 14 

 and 27). 



N" 36. Cari Barus. — Subsidence on Fine Solid Particles in Liquids. 



N» 37. Lester F. Ward. — Types of the Laramie Flora, 57 pi. 



N° 38. J. S. Diller. — Peridotite of EUiot Counly, Kentucky. 



N» 39. Narren Upham. — The upper Beaches and Deltas of the glacial Lake 

 Agassiz, 1 carte. 



— Memoirs of the National Academy of Sciences, in-4°, vol. III. 

 Part. 2, 1886. i 



A. S. Packard. — On the Syncarida, a hitherto undescribed synthetic group o 

 extinct Malacostracous Crustacea, 2 pi., p. 123. 



— On the Gampsonychidœ an undescribed Family of Fossil Schizopod Crusta- 

 cea, pi. III, fig. 1-4, pi. VIII, fig. 1-2, p. 129. 



— On the Anthracaridae, a Family of Carboniferous Macrurous Decapod Crusta- 

 cea, p. 135. 



— On the Carboniferous Xiphosurous Fauna of North America, 4 pi., p. 143. 

 E. D. Cope. — On two new Forms of Polyodont and Gonorchynchid Fishes 



from the Eocene of the Rocky Mountains, 1 pi., p. 161. 



— Washington. — Sixth Annual Report of the United States Geo- 

 logical Survey to the Secretary of the Interior, 1884-85. — by Powel 

 Director. 



— Senate. — Report on the Geology on the Lake Superior Land Dis- 

 trict, 1851. 



J. W. Porster and J. D. Whitney. — - Part. II. The Iron Région to- 

 gether with the gênerai Geology (2 exemplaires), maps. 



— 1852. 



— Senate. — Annual Report of the superintendent of the Coast 

 Survey showing the Progress of that Work during the Year ending 

 November 1851. 



