VIII ADVERTISEMENT. 
155. Earthquakes in California in 1896 and 1897, by Charles D. Perrine, Assistant Astronomer i] 
Charge of Earthquake Observations at the Lick Observatory. 1898. 8°. 47 pp. Price 5 cents. 
156. Bibliography and Index of North American Geology, Paleontology, Petrology, aud Mineralog; 
orthe Year 1897, by Fred Boughton Weeks. 1898. 8°. 130 pp. Price 15 cents. 
157. The Gneisses, Gabbro-Schists, and Associated Rocks of Southwestern Minnesota, byChristophe 
Webber Hall. 1899. 8°. 160 pp. 27 pi. Price 45 cents. 
158. The Moraines of Southeastern South Dakota and their Attendant Deposits, by James Edwan 
Todd. 1899. 8°. 171 pp. 27 pi. Price 25 cents. 
159. The Geology of Eastern Berkshire County, Massachusetts, by B. K. Emerson. 1899. 8°. 13 
pp. 9 pi. Price 20 cents. 
160. A Dictionary of Altitudes in the United States (Third Edition), compiled by Henry Gannetl 
1899. 8°. 775 pp. Price 40 cents. 
161. Earthquakes in California in 1898, by Charles D. Perrine, Assistant Astronomer in Charge o 
Earthquake Observations at the Lick Observatory. 1899. 8°. 31pp. 1 pi. Price 5 cents. 
162. Bibliography and Index of North American Geology, Paleontology, Petrology, and Mineralog; 
for the Tear 1898, by Fred Boughton Weeks. 1899. 8°. 163 pp. Price 15 cents. 
163. Flora of the Montana Formation, by Frank Hall Knowlton. 1900. 8°. 118 pp. Price 15 cents 
In preparation : 
164. Reconnaissance in the Rio Grande Coal Fields of Texas, by Thomas Wayland Yaughan, includ 
ng a Report on Igneous Rocks from the San Carlos Coal Fields, by E. C. E. Lord. 
165. Contributions to the Geology of Maine, by Henry S. Williams and Herbert E. Gregory. 
166. A Gazetteer of Utah, by Henry Gannett. 
1 67. Contributions to Chemistry and Mineralogy from the Laboratory of the United States Geologica 
Survey, Frank W. Clarke, Chief Chemist. 
168. Analyses of Rocks, Laboratory of the United States Geological Survey, 1880 to 1899, tabulate! 
by F. W. Clarke, Chief Chemist. 
169. Altitudes in Alaska, by Henry Gannett. 
170. Idaho-Montana Boundary Line, by Richard Urquhart Goode. 
— . Bibliography and Catalogue of the Fossil Vertebrata of North America, by Oliver Perry Hay 
WATER-SUPPLY AND IRRIGATION PAPERS. 
By act of Congress approved June 11, 1896, the following provision was made : 
"Provided, That hereafter the reports of the Geological Survey in relation to the gauging o 
streams and to the methods of utilizing the water resources may be printed in octavo form, not ti 
exceed one hundred pages in length and five thousand copies in number; one thousand copies o 
which shall be for the official use of the Geological Survey, one thousand five hundred copies shall bi 
delivered to the Senate, and two thousand five hundred copies shall be delivered to the House of Rep 
resen tatives, for distribution." 
Under this law the following papers have been published : 
1. Pumping Water for Irrigation, by Herbert M. Wilson. 1896. 8°. 57 pp. 9 pi. 
2. Irrigation near Phoenix, Arizona, by Arthur P. Davis. 1897. 8°. 97 pp. 31 pi. 
3. Sewage Irrigation, by George W. Rafter. 1897. 8°. 100 pp. 4 pi. 
4. A Reconnoissance in Southeastern Washington, by Israel Cook Russell. 1897. 8°. 96 pp. 7 pi 
5. Irrigation Practice on the Great Plains, by Elias Branson Cowgill. 1897. 8°. 39 pp. 12 pi. 
6. Underground Waters of Southwestern Kansas, by Erasmuth Haworth. 1897. 8°. 65 pp. 12 pL 
7. Seepage Waters of Northern Utah, by Samuel Fortier. 1897. 8°. 50 pp. 3 pi. 
8. Windmills for Irrigation, by E. C. Murphy. 1897. 8°. 49 pp. 8 pi. 
9. Irrigation near Greeley, Colorado, by David Boyd. 1897. 8°. 90 pp. 21 pi. 
10. Irrigation in Mesilla Valley, New Mexico, by F. C. Barker. 1898. 8°. 51pp. 11 pi. 
11. River Heights for 1896, by Arthur P. Davis. 1897. 8°. 100 pp. 
12. Water Resources of Southeastern Nebraska, by Nelson H. Darton. 1898. 8°. 56 pp. 21 pi. 
13. Irrigation Systems in Texas, by William Ferguson Hutson. 1898. 8°. 67 pp. 10 pi. 
14. New Tests of Certain Pumps and Water- Lifts used in Irrigation, by Ozni P.Hood. 1898. 8°. 
91 pp. 1 pi. 
15. Operations at River Stations, 1897, Part I. 1898. 8°. 100 pp. 
16. Operations at River Stations, 1897, Part II. 1898. 8°. 101-200 pp. 
17. Irrigation near Bakersfield, California, by C. E. Grunsky. 1898. 8°. 96 pp. 16 pi. 
18. Irrigation near Fresno, California, by C. E. Grunsky. 1898. 8°. 94 pp. 14 pi. 
19. Irrigation near Merced, California, by C.E. Grunsky. 1899. 8°. 59 pp. 11 pi. 
20. Experiments with Windmills, by T. O. Perry. 1899. 8°. 97 pp. 12 pi. 
21. Wells of Northern Indiana, by Frank Leverett. 1899. 8°. 82 pp. 2 pi. 
22. Sewage Irrigation, Part II, by George W. Rafter. 1899. 8°. 100 pp. 7 pi. 
23. Water-right Problems of the Bighorn Mountains, by Elwood Mead. 1899. 8°. 62 pp. 7 pi. 
24. Water Resources of the State of New York, Part I, by George W. Rafter. 1899. 8°. 99 pp. 
13 pi. 
