Archival objects in this container: Correspondence, approximately 1938 to 1944 Chemistry laboratory notebook, 1925 Crystallography research notes, approximately 1919 to 1951 Jeppesen handheld navigation slide-rule, "Dalton Dead Reckoning Computer", approximately 1940 to 1950 Eliminating Waste in Blasting, booklet, 1922 Geological maps drawn by Murphy, approximately 1919 to 1951 Index maps, western United States, approximately 1942 to 1943 Kirkland Lake, Ontario Canada, central ore zone, Canadian maps, approximately 1919 to 1951 School papers and graded assignments, 1921-1937
