2. "one-third part of all gold * * *": Ordinance of 1785.
3. "not mineral lands": Opinion of the Attorney General, August 28, 1850.
4. "to examine the geological structure * * *": the phrase is taken from the Organic Act of the U.S. Geological Survey.
5. "few subjects connected with the duties * * *" and "development of these great resources * * *": Lt. Col. John J. Abert, Report of the Chief of the Topographical Bureau, in Report of the Secretary of War: U.S. Congress, 23d, 1st session, House Executive Document 2, 1833, p. 182.
6. "an officer skilled in the sciences * * *": James Whitcomb, Commissioner of the General Land Office, in House Executive Document 239, 26th Congress, 1st session, 1840, p. 7.
7. "to acquire and diffuse * * *" and "practical and scientific experiments * * *": An Act to establish a Department of Agriculture, 12 Stat. L., 387.
8. "Eighteen sixty-seven marks * * *": Clarence King, in U.S. Geological Survey 1st Annual Report, 1880, p. 4.
9. "classification of the public lands * * *": Organic Act of the U.S. Geological Survey.
10. "classification of the public lands * * *": Organic Act of the U.S. Geological Survey.
11. "practical and general geology and paleontology": Clarence King, in U.S. Geological Survey 1st Annual Report, 1880, p. 69.
12. "to continue the preparation * * *": Sundry Civil Expenses Act, August 7, 1882, 22 Stat. L., 329.
13. "accessory": U.S. Geological Survey 7th Annual Report, 1888, p. 11.
14. "adopted": J.W. Powell, in U.S. Geological Survey 2d Annual Report, 1882, p. xii.
15. "geologic taxonomy and nomenclature" and "the range of conception * * *": U.S. Geological Survey 10th Annual Report, 1890, p. 57-58.
16. "investigate the operations * * *": Congressional Record, U.S. Congress, 52d, 2d session, p. 6851.
17. "preparation of the geologic map": Sundry Civil Expenses bills, 1888-1893.
18. "locating and representing * * *": House Executive Document 5, U.S. Congress, 52d, 2d session, p. 247.
19. "gauging the streams * * *": 28 Stat. L., 398.
20. "public lands * * *": Forest Management Act, June 4, 1897.
21. "to determine the best method * * *": Congressional Record, U.S. Congress, 54th, 2d session, p. 960.
22. "the standards of the future * * *": C.D. Walcott, in Outlook of the geologist in America: Geological Society of America Bulletin, v. 13, 1902, p. 116.
23. "to promote science and literature * * *": The articles of incorporation are described in Science, new ser., v. 13, 1901, p. 921-922.
24. "extending human knowledge * * *": Note signed D.C.G. [Daniel C. Gilman, first president of Johns Hopkins University and first president of Carnegie Institution of Washington], in Science, new ser., v. 15, 1902, p. 202.
25. "in no other country * * *": Editorial, in Engineering and Mining Journal, v. 77, no. 2, 1904, p. 68-69.
26. "freedom from the encroachments * * *": Editorial, in Engineering and Mining Journal, v. 77, no. 8, 1904, p. 309.
27. "to determine their fuel values * * *": 33 Stat. L., 31.
28. "to secure in permanence * * *": President Theodore Roosevelt to the Second Public Lands Commission, October 1903.
29. "department of practical geology": C.R. Van Hise, in Science, v. 36, 1912, p. 196.
30. "There can be no applied science * * *": W.C. Mendenhall, in G.O. Smith, U.S. Geological Survey 49th Annual Report, 1928, p. 8.
31. "scientific research, technical integrity * * *": Editorial, in Engineering and Mining Journal, v. 144, no. 3, 1943, p. 48.
32. "not periodically at wide-spaced intervals * * *": President's Materials Policy Commission, 1952, Resources for freedom, v. 1, p. 2.
33. "to level off peaks and valleys": President Dwight D. Eisenhower, Message to Congress, February 2, 1953.
34. "participate actively and authoritatively * * *": T.B. Nolan, Role of the geologist in the national economy: Geological Society of America Bulletin, v. 73, 1962, p. 273.
35. "landing a man on the moon * * *": President John F. Kennedy, Message to Congress, May 25, 1961.
36. "outside the national domain": 76 Stat. L., 427.
37. "I propose to dedicate this year * * *": President Lyndon B. Johnson, Proclamation on U.S. participation in the International Cooperation Year, June 1964.
38. See note 22.
39. "affect human life and health * * *": D.R. Crandell and D.R. Mullineaux, Potential hazards from future eruptions of Mount St. Helens Volcano, Washington: U.S. Geological Survey Bulletin 1383-C, 1978, p. C2.