486 DONS. — DU 4 AVRIL AU 27 JUIN 1892 



Baur : Notes on some Utile known American Fossil Tortoises. — Hayden : Mémo- 

 rial Geological Award. — Eyerman : Preliminary Notice of some minerais from 

 the Serpentine Belt, near Easton, Pensylvania. — Report of the Mineralogical ami 

 Geological Section. 



— Proceedings of the American Philosophical Society held at 

 Philadelphia for promoting useful Knowledge, vol. XXIX, n° 13G, 

 1891. 



— List of Surviving Members of the —, 1892. 



Rochester. — Proceedings of the Rochester Academy of Science, 

 vol. 1, n°2, 1891. 



John Wallon : Note on- the Occurence of Mesodon Sayii. — Geological Section 

 Report. — H. Harris : Note upon aboriginal Implement recently found in Ironde- 

 gnoit. — Fairchild : A section oftheStrata at Rochester, N. Y. 



— Bulletin of the Geological Survey of American, vol. 3. 



Bayley : Eleolithe-Syenile of Litchlield, Maine, and Hawes' Hornblende-Syenite 

 from red II il 1 , new Hampshire, p. 231-252, 1 pi. 



Washington. — The American Monthly Microscopical Journal 

 containing Contributions to Biology, vol. XIII, n° 4 (n° 148). 



— Bulletin of the United States Geological Survey. 



N" 62. G. 11. Williams : The Greenstone schist Areas ot the Menominee and Mar- 

 quette Régions of Michigan, 217 p. 16 pi., 1890. 



N° 65. Israël C. While : Stratigraphy of the Bituminous Coal Field of Pensylvania, 

 Ohis, and West Virginia, 212 p., 11 pi., 1891. 



N° 67. Nelson Horatio Darlon : The relations of the Traps of the Newark system in 

 the New-Jersey Région, 1890, 82 p. 



N» 68. Edward Keeler : Earthquakes, in California en 1869, 25 p., 1898. 



N° 69. S. Hubbard Scudder : A classed and annotated Bibliography of Fossil 

 Insects, 1890, 101 p. 



N° 70 : Simpson Woodward : Report on Aslronomical Work of 1889 and 1890, 1890, 

 70 p. 



N° 71. S. H. Scudder : Index to the knowm Fossil Insects of the World, including 

 myriapodsand Arachnids, 1891, 744 p. 



N° 72. Warren Upham : Altitudes between Lake superior and the Hocky Moun- 

 tains, 1891, 229 p. 



N° 73. Cari Barus : The Viscosity of solids. 1891, 139 p., 6 pi. 



N° 74. F. A. Genth : The Minerais of North Carolina, 1891, 119 p. 



N» 75. N. H. Darton : Record of North America Geology for 1887-1889. inclusive 

 173 p., 1891. 



N° 76. Henry Gannet : A Dictionary of Altitudes in the Unité States (2 e édilion), 

 393 p., 1891. 



N° 77. Ch. A. White : The Texan Permian and its Mesozoic types of Fossils, 51 p., 

 4 pi., 1891. 



N° 78. F. W. Clarke : A Beport of work done in the Division of Cheinistry, and 

 Physics, mainly during the fiscal year, 1889-90, 131 p., 1891. 



N° 79. .1. S. Diller : A Late volcanic Eruption in Northern California and its 

 peculiar lava, 33 p., 17 pi. 1891 . 



