ADVK RTISEM E N T. V 1 1 



135. Bibliography and Index of North American Geology. Paleontology, Petrology, anil Miner- 

 alogy for the Year 1894, by F. B. Weeks. 1896. 8. 141pp. Price 15 cents. 



136. Volcanic Rocks of South-Mountain, Pennsylvania, by Florence Bascom. 1896. 8. 121 pp. 

 28 pi. Price 15 cents. 



137. The Geology of the Fort Rilry Military Reservation and Vicinity. Kansas, by Robert Hay. 

 1811(3. 8 1 -. 35pp. 8 pi. Price 5 cents. 



138. Artesian-Well Prospects in the Atlantic Coastal Plain Region, by X. II. Darton. 1896. 8, 

 228 pp. 19 pi. Price 20 cents. 



139. Geology of the Castle Mountain Mining District, Montana, by \V. II. Weed and I,. Y. I'irs- 

 son. 1896. 8. 164 pp. 17 pi. Price 15 cents. 



140. Report of Progress of the Division of Hydrography for the Calendar Year 1895, by Frederick 

 Haynes Newell, Hydrographer in Charge. 1896. 8. 356pp. Price 25 cents. 



141. The Eocene Deposits of the Middle Atlantic Slope in Delaware, Maryland, and Virginia, 

 by William Bullock Clark. 1896. 8. 167pp. 40 pi. Price 15 cents. 



142. A Brief Contribution to the Geology and Paleontology of Northwestern Louisiana, by 

 T. Wayland'Vanghan. 1896. 8 C . 65pp. 4 pi.' Price ;0 cents. 



143. A Bibliography of Clays and the Ceramic Arts, by John C. Branuer. 1896. 8~. 114pp. 

 Price 15 cents. 



144. The Moraines of the Missouri Cotean and their Attendant I >cposits, by James EdwardTodd. 

 1896. 8. 71 pp. 21 pi. Price 10 cents. 



14."). The Potomac Formation in Virginia, hy W. M. Fontaine. 1896. 8. 149pp. 2 pi. Price 

 15 cents. 



146. Bibliography and Index of North American Geology, Paleontology, Petrology, and Miner- 

 alogy for the Year 1895, by F. B. Weeks. 1896. 8. 130 pp. Price 15 cents. 



147. Earthquakes iu California in 1895, by Charles 1). Perrine, Assistant Astronomer in Charge 

 of Earthquake Observations at the Lick Observatory. 1890. 8 . 23pp. Price 5 cents. 



148. Analyses of Rocks, \vitha Chapter on Analytical Methods, Laboratory of the United States 

 Geological Survey, 1880 to 1896, by F. YV. Clarke and YV. F. Hillebrand. 1897! 8-. 306 pp. Price 

 20 cents. 



149. Bibliography and Index of North American Geology, Paleontology, Petrology, and Miner- 

 alogy for the Year 1896, by Fred Bough ton Weeks. 1897. 8. 152 pp. Price 15 cents. 



150. The Educational Series of Rock Specimens collected and distributed by the United States 

 Geological Survey, by Joseph Silas Diller. 1898. 8. 398pp. 47 pi. Price 25 cents. 



151. The Lower Cretaceous Grypha-as of the Texas Region, by R. T. Hill aud T. Wayland 

 Vaughan. 1898. 8 ; . 139pp. 25 pi. Price 15 cents. 



152. A Catalogue of tlio Cretaceous and Tertiary Plants of North America, by F. II. Knowlton. 

 1898. 8. 247pp. Price 20 cents. 



153. A Bibliographic Index of North American Carboniferous Invertebrates, by Stuart Weller. 

 1898. 8-. 653pp. Price 35 cents. 



154. A Gazetteer of Kansas, by Henry Gannett. 1898. 8 C . 246 pp. 6 pi. Price 20 cents. 



155. Earthquakes in California in 1896 and 1897, by Charles D. Perrine, Assistant Astronomer 

 in Charge of Earthquake Observations at the Lick Observatory. 1898 8-. 47 pp. Price 5 cents. 



156. Bibliography and Index of North American Geology, Paleontology, Petrology, and Miner- 

 alogy for the Year 1897', by Fred Bonghtou Weeks. 1898. 8^. 130pp. Price 15 cents.' 



157. The Gneisses, Gabbro-Schists, and Associated Rocks of Southeastern Minnesota, by Chris- 

 topher Webber Hall. 18'J9. 8. 160pp. 27 pi. Price 45 cents. 



158. The Moraines of Southeastern South 1 >akota and their Attendant Deposits, by James Edward 

 Todd. 1899. 8 C . 171 pp. 27 pi. Price -5 cents. 



159. The Geology of Eastern Berkshire County, Massachusetts, by B. K. Emerson. 1899. 8. 

 139 pp. 9 pi. Price 20 cents. 



160. A Dictionary of Altitudes in the United States (Third Edition), compiled by Henry 

 Gannett. 1899. 8 C . 775pp. Price 40 cents. 



161. Earthquakes in California in 1898, by Charles D. Perrine, Assistant Astronomer in Charge 

 of Earthquake Observations ut the Lick Observatory. 1899. 8 '-'. 31 pp. 1 pi. Price 5 cents. 



162. Bibliography and Index of North American Geology, Paleontology, Petrology and Miner 

 alogy for the Year 1898, by Fred Bonghton Weeks. 1899. 8-.* 163 pp. Price 15 cents. 



163. Flora of the Montana Formation, by Frank Hall Knowlton. 1900. 8. 118pp. Price 15 

 cents. 



161. Reconnaissance in the Rio Grande Coal Fields of Texas, by Thomas Wayland Vaughan, 

 including a report on Igneous Rocks from the San Carlos Coal Field, by E. C. E. Lord. 1900. N . 

 100pp. 11 pi. and maps. Price 20 cents. 



165. Contributions to the Geology of Maine, by Henry S. Williams and Herbert E. Gregory. 

 1900. 8 ; . 212 pp. 14 pi. Price 25 cents. 



L66. A Gazetteer of Utah, by Henry Gannett. 1900. 8. 43pp. 1 map. Price 15 cents. 



167. Contributions to Chemistry and Mineralogy from the Laboratory of the United States 

 Geological Survey, Frank W. Clarke, Chief Cliemist. 1900. 8'-'. 166pp. Price 15 cents. 



168. Analyses of Rocks, Laboratory of the United States Geological Survey, 1880 to 1899, 

 tabulated by F. W. Clarke, Chief Chemist.' 1900. 8 . 308 pp. Price 20 cents. 



169. Altitudes in Alaska, by Henry Gannett. 1900. 8 1 -. 13pp. Price 5 cents. 



170. Survey of the Boundary Line between Idaho and Montana from the International Boundary 

 to the Crest of the Bitterroot Mountains, by I'ichard-Urquhart Goode. 1900. 8 . 67 pp., 14 pi. Price 

 15 cents. 



