Description
Hardcovers in blue cloth, in original dust-jackets. 510pp. and 780pp. respectively. Index in each volume. Illustrated with charts, graphs, figures and folding plates. A collection of 70 papers written about the relation of geological structure to oil accumulatiuon. No name, no book-plate, etc. Cloth mottled and dust-jackets quite worn and brittle, though largely intact. Endpapers and edges toned and dust-soiled from age, interiors clean and unmarked. A good working set.