VI ADVERTISEMENT. 



97. The Mesozoic EchinodermaTia of the United States, by W. B. Clark. 1893 8° 207 pp .oOpl 

 Price 20 cents. 



98. Flora of the Outlying Carboniferous Basins of Soutjiwesteru Missouri, by David White. 

 1893. 8". 139 pp. 5 pi. Price 15 cents. 



99. Record of North American Geology for 1891, by Nelson Horatio Darton. 1892. 8°. 73 pp. 

 Price 10 cents. 



100. Bibliography and Index of the Publications of the U. S. Geological Survey, 1879-1892 by 

 Philip Creveliug Warman. 1893. 8°. 495 pp. Price 25 cents. 



101. Insect Fauna of the Rhode Island Coal Field, by Samuel Hubbard Scudder. 1893. 8°. 

 27 pp. 2 pi. Price 5 cents. 



102. A Catalogue and Bibliography of North American Mesozoic Invertebrata, by Cornelius 

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103. High Temperature Work in Igneous Fusion and Ebullition, chieliy in Relation to Pressure 

 by Carl Barus. 1893. 8°. 57 pp. 9 pi. Price 10 cents. 



104. Glaciation of the Yellowstone Valley north of the Park, by Walter Harvey Weed. 1893. 8°. 

 41 pp. 4 pi. Price 5 cents. 



105. The Laramie aud the Overlying Livingstone Formation in Montana, by WaHer Harvey 

 Weed, with Report on Flora, by Frank Hall Knowlton. 1893. 8°. 68 pp. 6 pi. Price 10 cents. 



106. The Colorado Formation and its luvertebrate Fauna, by T. W. Stauton. 1893. 8°. 288 

 pp. 45 pi. Price 20 cents. 



107. The Trap Dikes of the Lake Champlain Region, by .James Furmau Kemp aud Vernon 

 Freeman Marsters. 1893. 8". 62 pp. 4 pi. Price 10 cents. 



108. A Geological Recounoissance in Central Washington, by Israel Cook Russell. 1893. 8". 

 108 pp. 12 pi. Price 15 cents. 



109. The Eruptive and Sedimentary Rocks on Pigeon Point, Minnesota, aud their Contact 

 Phenomena, by William Shirley Bayley. 1893. 8°. 121 pp. 16 pi. Price 15 cents. 



110. The Paleozoic Section in the Vicinity of Three Forks, Montana, by Albert Charles Peale. 

 893. 8^. 56 pp. 6 pi. Price 10 cents. 



111. Geology of the Big Stone Gap Coal Fields of Virginia and Kentucky, by Marius R. Camp- 

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112. Earthquakes in California in 1892, by Charles D. Perrine. 1893. 8°. 57 pp. Price 10 cents. 



113. A Report of Work done in the Division of Chemistry during the Fiscal Years 1891-'92 and 

 1892-'93. F. W. Clarke, Chief Chemist. 1893. 8". 115 pp. Price 15 cents. 



114. Earthquakes in California in 1893, by Charles D. Perrine. 1894. 8". 23 pp. Price's cents. 



115. A Geographic Dictionary of Rhode Island, by Henry Gannett. 1894. 8°. 31 pp. Price 

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116. A Geographic Dictionary of Massachusetts, by Henry Gannett. 1894. 8°. 126 pp. Price 

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117. A Geographic Dictionary of Connecticut, by Henry Gannett. 1894. 8°. 67 pp. Price 10 

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118. A Geographic Dictionary of New Jersey, by Henry Gannett. 1894. 8°. 131 pp. Price 15 

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119. A Geological Reconnaissance in Northwest Wyoming, by George Homans Eldridge. 1894. 

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120. The Devonian System of Eastern Pennyslvania and New York, by Charles S. Prosser. 1894. 

 8^^. 81 pp. . 2 pi. Price 10 cents. 



121. A Bibliography of North American Paleontology, by Charles RoUin Keyes. 1894. 8°. 251 

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122. Results of Primary Triangulation, by Henry Gannett. 1894. 8"^. 412 pp. 17 pi. Price 

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123. A Dictionary of Geographic Positions, by Henry Gannett. 1895. 8'^. 183 pp. 1 pi. Price 

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124. Revision of North American Fossil Cockroaches, by Samuel Hubbard Scudder. 1895. 8^. 

 176 pp. 12 pi. Price 15 ceuts. 



125. The Constitution of the Silicates, by Frank Wigglesworth Clarke. 1895. 8°. 109 pp. 

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126. A Mineralogical Lexicon of Franklin, Hampshire, and Hampden counties, MaiSsachusetts, 

 by Benjamin Kendall Emerson. 1895. 8°. 180 jip. 1 pi. Price 15 cents. 



127. Catalogue and Index of Contributions to North American Geology, 1732-1891, by Nelson 

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128. The Bear River Formation and its Characteristic Fauna, by Charles A. AVhite. 1895. 8°. 

 108 pp. 11 pi. Price 15 cents. 



129. Earthquakes in California in 1894, by Charles D. Perrine. 1895. 8"^. 25 pp. Price 5 cents. 



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

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131. Report of Progress of the Division of Hydrography for the Calendar Years 1893 and 1894, 

 by Frederick Haynes Newell, Topographer ill Charge. 1895. 8"^. 126 pp. Price 15 cents. 



132. The Disseminated Lead Ores of Southeastern Missouri, by Arthur Winslnw. 1896. 8'^. 

 31 pp. Price 5 cents. 



133. Contributions to the Cretaceous Paleontology of the Pacific Coast: The Fauna of the 

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134. The Cambrian Rocks of Pennsylvania, by Charles Doolittle Walcott. 1896. 8°. 43 pp. 

 15 pi. Price 5 cents. 



