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35. Physical Properties of the Iron-Carburets, by Carl Barus and Vincent Strouhal. 1886. 8°. 
62 pp. Price 10 cents. : 
36. Subsidence of Fine Solid Particlesin Liquids, by Carl Barus. 1886. 8°. 58pp. Pricel0cents. 
37. Types of the Laramie Flora, by Lester F. Ward. 1887. 8°. 354pp. 57 pl. Price 25 cents. 
38. Peridotite of Elliott County, Kentucky, by J.S. Diller. 1887. 8°. 3lpp. 1pl. Price5cents. 
39. The Upper Beaches and Deltas of the Glacial Lake Agassiz, by Warren Upham. 1887. 8°. 
84 pp. Lpl. Price 10 cents. 
40. Changes in River Courses in Washington Territory due to Glaciation, by Bailey Willis. 1887. 
8°. 10 pp. 4pl._ Price 5 cents. 
41. On the Fossil Faunas of the Upper Devonian—the Genesee Section, New York, by Henry 8. 
Williams. 1887. 8°. 121 pp. 4 pl. Price 15 cents. 
42. Reportof Work done in the Division of Chemistry and Physics, mainly during the Fiscal Year 
188586. F.W. Clarke, Chief Chemist. 1887. 8°. 152pp. l1pl. Price 15 cents. 
43. Tertiary and Cretaceous Strata of the Tuscaloosa, Tombigbee, and Alabama Rivers, by Eugene 
A. Smith and Lawrence C. Johnson. 1887. 8°. 189 pp. 21 pl. Price 15 cents. 
44, Bibliography of North American Geology for 1886, by Nelson H. Darton. 1887. 8°. 35 pp. 
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45. The Present Condition of Knowledge of the Geology of Texas, by Robert T. Hill. 1887. 8°. 
94 pp. Price 10 cents. 
46. Nature and Origin of Deposits of Phosphate of Lime, by R. A. F. Penrose, jr., with an Intro- 
duction by N.S. Shaler. 1888. 8°. 143 pp. Price 15 cents. 
47. Analyses of Waters of the Yellowstone National Park, with an Account of the Methods of 
Analysis employed, by Frank Austin Gooch and James Edward Whitfield. 1888. 8°. 84 pp. Price 
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48. On the Form and Position of the Sea Level, by Robert Simpson Woodward. 1888. 8°. 88 
pp. Price 10 cents. 
49, Latitudes and Longitudes of Certain Points in Missouri, Kansas, and New Mexico, by Robert 
Simpson Woodward. 1889. 8°. 133 pp. Price 15 cents. 
50. Formulas and Tables to Facilitate the Construction and Use of Maps, by Robert Simpson 
Woodward. 1889. 8°. 124 pp. Price 15 cents. 
51, On Invertebrate Fossils from the Pacific Coast, by Charles Abiathar White. 1889. 8°. 102 
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52. Subaérial Deeay of Rocks and Origin of the Red Color of Certain Formations, by Israel 
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53. The Geology of Nantucket, by Nathaniel Southgate Shaler. 1889. 8°. 55 pp. 10pl. Price 
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54. On the Thermo-Electric Measurement of High Temperatures, by Carl Barus. 1889. 8°. 
313 pp.,inel.1 pl. 11 pl. Price 25 cents. 
55. Report of Work done in the Division of Chemistry and Physics, mainly during the Fiscal 
Year 188687. Frank Wigglesworth Clarke, Chief Chemist. 1889. 8°. 96 pp. Price 10 cents. 
56. Fossil Wood and Lignite of the Potomac Formation, by Frank Hall Knowlton. 1889. 8°. 
72pp. Tpl. Price 10 cents. , 
57. A Geological Reconnoissance in Southwestern Kansas, by Robert Hay. 1890. 8°. 49 pp. 
2pl. Price 5 cents. 
58. The Glacial Boundary in Western Pennsylvania, Ohio, Kentucky, Indiana, and Illinois, by 
George Frederick Wright, with an Introduction by Thomas Chrowder Chamberlin. 1890. 89°. 112 
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59. The Gabbros and Associated Rocks in Delaware, by Frederick D. Chester. 1890. 8°. 45 
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60. Report of Work done in the Division of Chemistry and Physics, mainly during the Fiscal 
Year 188788. F. W. Clarke, Chief Chemist. 1890. 8°. 174 pp. Price 15 cents. 
61. Contributions to the Mineralogy of the Pacific Coast, by William Harlow Melville and Wal- 
demar Lindgren. 1890. 8°. 40 pp. 3pl. Price 5 cents. 
62. The Greenstone Schist Areas of the Menominee and Marquette Regions of Michigan, a Con- 
tribution to the Subject of Dynamic Metamorphism in Eruptive Rocks, by George Huntington Williams, 
with an Introduction by Roland Duer Irving. 1890. 8°. 241 pp. 16 pl. Price 30 cents. 
63. A Bibliography of Paleozoic Crustacea from 1698 to 1889, including a List of North Amer- 
ican Species and a Systematic Arrangement of Genera, by Anthony W. Vogdes. 1890. 8°. 177 pp. 
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64. A Report of Work done in the Division of Chemistry and Physics, mainly during the Fiscal 
Year 1888-89. F. W. Clarke, Chief Chemist. 1890. 8°. 60 pp. Price 10 cents. 
65. Stratigraphy of the Bituminous Coal Field of Pennsylvania, Ohio, and West Virginia, by 
Israel C. White. 1891. 8°. 212 pp. lipl. Price 20 cents. 
66. On a Group of Voleaniec Rocks from the Tewan Mountains, New Mexico, and on the Oceur- 
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67. The Relations of the Traps of the Newark System in the New Jersey Region, by Nelson 
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68. Earthquakes in California in 1889, by James Edward Keeler. 1890. 8°. 25 pp. Price 5 
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69. A Classed and Annotated Biography of Fossil Insects, by Samuel Howard Seudder. 1890. 
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