IV ADVERTISEMENT. 
29. On the Fresh-Water Invertebrates of the North American Jurassic, by Charles A. White. 1886. 
8°. 41 pp. 4pl. Price 5 cents. 
30. Second Contribution to the Studies on the Cambrian Faunas of North America, by Charles 
Doolittle Walcott. 1886. 8°. 369pp. 33pl. Price 25 cents. 
31. Systematic Review of our Present Knowledge of Fossil Insects, including Myriapods and 
Arachnids, by Samuel Hubbard Scudder. 1886. 8°. 128 pp. Price 15 cents. 
32. Lists and Analyses of the Mineral Springs of the United States; a Preliminary Study, by 
Albert C. Peale. 1886. 8°. 235 pp. Price 20 cents. 
33. Notes on the Geology of Northern California, by J.S. Diller. 1886. 8°. 23 pp. Price5 cents. 
34, On the Relation ofthe Laramie Molluscan Faunato that of the Succeeding Fresh-Water Eocene 
and Other Groups, by Charles A. White. 1886. 8°. 54 pp. 5pl. Price 10 cents. 
35. Physical Properties of the Iron-Carburets, by Carl Barus and Vincent Strouhal. 1886. 8°. 
62 pp. Price 10 cents. - 
36. Subsidence of FineSolid Particlesin Liquids, by CarlBarus. 1886. 8°. 58pp. Price10cents. 
37. Types of the Laramie Flora, by Lester F. Ward. 1887. 8°. 354pp. 57pl. Price 25 cents. 
38. Peridotite of Elliott County, Kentucky, by J.S. Diller. 1887. 8°. 31pp. 1pl. Price5cents. 
39. The Upper Beaches and Deltas of the Glacial Lake Agassiz, by Warren Upham. 1887, 8°. 
84 pp. Ipl. Price 10 cents. 
40. Changes in River Courses in Washington Territory due to Glaciation, by Bailey Willis. 1887. 
8°. 10pp. 4pl._ Price 5 cents. 
41. On the Fossil Faunas of the Upper Devonian—the Genesee Section, New York, by Henry S. 
Williams. 1887. 8°. 121 pp. 4pl. Price 15 cents. 
42. Reportof Work done in the Division of Chemistry and Physics, mainly during the Fiscal Year 
1885~86. F.W. Clarke, Chief Chemist. 1887. 8°. 152pp. 1pl. 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°. 189pp. 21pl. 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 
10 cents. 
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°. 1383 pp. Price 15 cents. 
50. Formulas and Tables to Facilitate the Construction and Use of Maps, by Robert Simpson 
Woodward. 1889. 8°. 124pp. Price 15 cents. 
51. On Invertebrate Fossils from the Pacific Coast, by Charles Abiathar White. 1889. 8°. 102 
pp. 14pl. Price 15 cents. 
52. Subaérial Decay of Rocks and Origin of the Red Color of Certain Formations, by Israel 
Cook Russell. 1889. 8°. 65pp. 5pl. Price 10 cents. 
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.,incl.1 pl. J1pl. Price 25 cents. 
55. Report of Work done in the Division of Chemistry and Physics, mainly during the Fiscal 
Year 1886~87. Frank Wigglesworth Clarke, Chief Chemist. 1889. 8°. 96pp. Price 10 cents. 
56. Fossil Wood and Lignite of the Potomac Formation, by Frank Hall Knowlton. 1889. 8°. 
72 pp. 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. 8°. 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 1887-88. 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. 
Price 15 cents. 
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. 
