1942. 2nd edition, Reprint. 389 pages. No dust jacket. Green cloth. Includes various diagrams. Pages have slight foxing, tanning and minor thumbing. Previous owner's inscription to front and rear endpapers. Gutters somewhat cracked with some exposed netting. Boards have heavy edge wear, with intense bumping and fraying to corners, while spine ends are very crushed and frayed. Joints worn too with splits. Scratched, rubbed and marked overall. Various ink spots and marks front and rear.