no proceedings: Washington society of engineers 



of the Yukon-Tanana region, which resulted in a regional elevation of 

 the base level, and was accompanied by extensive silt alluviation. 

 This new physiographic cycle took place in at least two stages, at the 

 end of the first of which occurred a period of stability when the piracy 

 of the south fork of Hess River by Livengood Creek was accomplished. 

 vSubsequently, these silt-filled valleys were drained, and the regional 

 base level was reduced, and it was during this period that the final 

 readjustment of the two drainage basins was efi'ected, and the south 

 fork of Hess River recovered a large part of its former drainage. vSuper- 

 position of both streams onto bedrock has been responsible for the pres- 

 ervation of the present silt-filled watershed between them. 



This topic is discussed in more detail in U. S. Geological vSurvey 

 Bulletin 662-D, entitled "The Gold Placers of the Tolovana District, 

 Alaska." 



The 328th meeting of the Society was held in the Conference Room 

 of the Director of the U. S. Geological Survey on May 8, 191 8. The 

 regular program was : 



George Otis Smith: .4 century of government geological surveys. 

 Published in A Century of Science in America. Yale University 

 Press, 191 8. Also in American Journal of Science Vol. 46, pp. 171- 192, 

 1918. 



At the 329th meeting of the Society, held on December 11, 1918, 

 the Presidential address was delivered by the retiring President, Frank 

 H. Knowlton: Evolution of Geologic climate. The address will be 

 published in full in the Bulletin of the Geological Society of i!\.merica 

 at a later date. 



At the Twenty-Sixth Annual Meeting held on the same evening 

 the following officers were elected for the ensuing year: President, 

 E. O. Ulrich; Vice-Presidents, G. H. Ashley and H. S. Gale; Treasurer, 

 Wm. B. Heroy; Secretaries, R. W. vStone and R. S. Bassler; Members 

 at-Large-of-the-Council, L. W. Stephenson, H. G. Ferguson, D. F. 

 Hewett, R. C. Wells, Eugene vStebinger. 



EsPER S. Larsen, Jr., Secretary. 



WASHINGTON SOCIETY OF ENGINEERS 



Ten meetings of the Society were held during the year 1 918 as follows: 



January 15, 191 8: William C. Edes, Chairman of the Alaskan 

 Engineering Commission: The Alaska Railroad. 



February 5, 191 8: Joint meeting with the Washington Section of 

 the American Institute of Electrical Engineers. Professor C. A. 

 Adams, of Harvard University: Standardization in engineering. 



February 19, 19 18: Lieut. Col. Henry vS. Graves, Forester and 

 Chief of the U. vS. Forest Service: The Forest Engineers in France. 



March 4, 1918: William B. Landreth, Deputy State Engineer 

 of New York : Relation of the Barge Canal to the transportation problems 

 of the United States. 



