VI - ADVERTISEMENT. 



103. High Temperature Work in Igneotis Fusion and Ebullition, chiefly in Eelation to Pressure, 

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

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105. The Laramie and the Overlying Livingstone Formation in Montana, by Walter Harvey 

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106. The Colorado Formation and its Invertebrate Fauna, by T. W. Stanton. 1893. 8'^. 288 

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107. The Trap Dikes of the Lake Champlain Region, by James Furman Kemp and Vernon 

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

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

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

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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 

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114. Earthquakes in California in 1893, by Charles D. Perrine. 1894. 8°. 23 pp. Price 5 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 jjp. 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 Reconnoissance in Northwest Wyoming, by George Homans Eldridge. 1894. 

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

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121. A Bibliography of North American Paleontology, by Charles Rolliu 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^. 

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

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

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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. White. 1895. 8°. 

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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, 

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132. The Disseminated Lead Ores of Southeastern Missouri, by Arthur Winslow. 1896. 8°. 

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

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

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

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136. Volcanic Rocks of South Mountain, Pennsylvania, by Florence Bascom. 1896. 8°. 124 pp- 

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

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138. Artesian-Well Prospects in the Atlantic Coastal Plain Region, by N. H. Darton, 1896. 8°. 

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139. Geology of the Castle Mountain Mining District, Montana, by W. H. Weed and L. V. Pirs- 

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

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