138 THE UNITED STATES GEOLOGICAL SURVEY. [bull. 227. 
68. Earthquakes in California in 1889, by J. E. Keeler. 1890. 8°. 25 pp. 
69. A classed and annotated bibliography of fossil insects, by S. H. Scudder. 1890. 
8°. 101 pp. 
70. Report on astronomical work of 1889 and 1890, by R. S. Woodward. 1890. 8°. 
79 pp. 
71. Index to the known fossil insects of the world, including myriapods and arach- 
nids; by S. H. Scudder. 1891. 8°. 744 pp. 
72. Altitudes between Lake Superior and the Rocky Mountains, by Warren Upham. 
1891. 8°. 229 pp. 
73. The viscosity of solids, by Carl Barus. 1891. 8°. xii, 139 pp., 6 pis. 
74. The minerals of North Carolina, by F. A. Genth. 1891. 8°. 119 pp. (Out of 
stock. ) 
75. Record of North American geology for 1887 to 1889, inclusive, by N. H. Darton. 
1891. 8°. 173 pp. 
76. A dictionary of altitudes in the United States (second edition), compiled by 
Henry Gannett, chief topographer. 1891. 8°. 393 pp. (Out of stock.) 
77. The Texan Permian and its Mesozoic types of fossils, by C. A. White. 1891. [ 
8°. 51 pp., 4 pis. 
78. A report of work done in the division of chemistry and physics, mainly during 
the fiscal year 1889-90. F. W. Clarke, chief chemist. 1891. 8°. 131 pp. 
(Out of stock.) 
79. A late volcanic eruption in northern California and its peculiar lava, by J. S. 
Diller. 1891. 8°. 33 pp., 17 pis. (Out of stock.) 
80. Correlation papers— Devonian and Carboniferous, by H. S.Williams. 1891. 8°. 
279 pp. (Out of stock.) 
81. Correlation papers— Cambrian, by C. D. Walcott. 1891. 8°. 447 pp., 3 pis. 
(Out of stock. ) 
82. Correlation papers— Cretaceous, by C. A. White. 1891. 8°. 273 pp., 3 pis. 
(Out of stock.) 
83. Correlation papers— Eocene, by W. B. Clark. 1891. 8°. 173 pp., 2 pis. (Out 
of stock. ) 
84. Correlation papers— Neocene, by W. H. Dall and G. D. Harris. 1892. 8°. 349 | 
pp., 3 pis. 
85. Correlation papers — the Newark system, by I. C. Russell. 1892. 8°. 344 pp., 
13 pis. (Out of stock. ) 
86. Correlation papers — Archean and Algonkian, by C. R. Van Hise. 1892. 8°. 
549 pp., 12 pis. (Out of stock. ) 
87. A synopsis of American fossil Brachiopoda, including bibliography and synon- 
ymy, by Charles Schuchert. 1897. 8°. 464 pp., 1 pi. 
88. The Cretaceous Foraminifera of New Jersey, by R. M. Bagg, jr. 1898. 8°. 89 
pp., 6 pis. 
89. Some lava flows of the western slope of the Sierra Nevada, California, by F. L. 
Ransome. 1898. 8°. 74 pp., 11 pis. 
90. A report of work done in the division of chemistry and physics, mainly during 
the fiscal year 1890-91. F. W. Clarke, chief chemist. 1892. 8°. 77 pp. 
91. Record of North American geology for 1890, by N.H. Darton. 1891. 8°. 88 pp. 
92. The compressibility of liquids, by Carl Barus. 1892. 8°. 96 pp., 29 pis. 
93. Some insects of special interest from Florissant, Colorado, and other points in 
the tertiaries of Colorado and Utah, by S. H. Scudder. 1892. 8°. 35 pp., 
3 pis. 
94. The mechanism of solid viscosity, by Carl Barus. 1892. 8°. 138 pp. 
95. Earthquakes in California in 1890 and 1891, by E. S. Holden. 1892. 8°. 
31 pp. 
96. The volume thermodynamics of liquids, by Carl Barus. 1892. 8°. 100 pp., 
8 pis. 
