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Some Engineering Problems of the Panama Canal in Their Relation to Geology and Topography

Description: Report issued by the Bureau of Mines over issues encountered during construction of the Panama Canal. As stated in the introduction, "this report aims to discuss, from the viewpoint of the mining geologist, the bearing of topographic and geologic conditions on certain problems that arose in the construction of the Panama Canal" (p. 7). This report includes tables, maps, illustrations, and photographs.
Date: August 1915
Creator: MacDonald, Donald F.

Newsmap. Monday, May 25, 1942 : week of May 15 to May 22

Description: Front : Text describes action on various war fronts: Axis hunts Shangri La -- Shadow on Australia -- New threat to China -- Gandhi still passive -- More Yanks in Ireland -- U.S. gets Panama bases -- Spain would trade -- Island volcano erupts -- Axis people grumble -- Axis battles Chetniks -- Air travel curtailed -- Prinz Eugen torpedoes -- Attack on Kharkov -- Vichy downs RAF planes -- Africa drive hinted -- Malta counts bombings. Large world map is keyed to text and illustrates time zones around the world. Inset maps show the Burma Road and a map of a portion of Europe overlaying a map of the United States. U.S. cities are shown in italics, European cities in capitals. Includes photographs: Doolittle did much -- North American B-25 -- Gandhi opposes [scorched earth policy] -- School of 'tin fish' ready for their deadly work -- Shell casings stacked in Moscow factory -- Rommel might move -- Catalinas from America keep an eye on the Mediterranean -- RAF salvages wrecked planes from desert. Includes 1 cartoon. Back: Know Your Enemies: the Nazi Army. Includes photographs: Supporting Fire, Howitzer in Action, Moving Up, Mountain Troops, Tank Destroyer, Anti-Aircraft Alert, No. 2 Man, Quick Crossing, Battle Practice, Flame Thrower, Mopping Up. Inset has text details for each photograph.
Date: May 25, 1942
Creator: [United States]. Army Orientation Course