Third volume of five volume set of diaries kept by Walter Todd, railroad surveyor for Alaskan Engineering Commission in southcentral Alaska. Jan. 15, 1917-May 18, 1917. [97] pages ; 15 cm.
Fourth volume of five volume set of diaries kept by Walter Todd, railroad surveyor for Alaskan Engineering Commission in southcentral Alaska. May 19, 1917-Jan. 2, 1918. [199] pages ; 15 cm.
Shows geological ages of formations and deposits. Includes legend. "Geological outlines,those of map published by Department of Interior, 1904." "Geology from results of various expeditions. Letters denote where fossil remains have been found in...