. Early geophysical papers of the Society of Exploration Geophysicists . dimensions of these magazines differ slightly, and a good size would be 41 inches wide, 80 inches long and 40 inches high to the eaves. It should have a gable roof with about a 4 inch rise. All surfaces are of 10-gauge hot rolled steel, blue annealed. The floor frames are 2X2X4 inch thick angle iron. The posts and top framing are i|Xi|Xi inch thick angle iron. 306

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Keywords: ., bo, bookcentury1900, booksubjectpetroleum, booksubjectprospecting