1949. Reprinted. 383 pages. No dust jacket. This is an ex-Library book. Red cloth. Contains black and white diagrams, some of which are folded. Expected library inserts, stamps and inscriptions. Light tanning to pages and text block pages. Text and diagrams are bright and clear. Binding remains firm. Minor markings to text block edges. Faint scratching to boards, and scuffing to all edges. Moderate corner bumping with fraying of cloth. Spine is mildly tanned, with moderately faded lettering and slight crushing to ends. Book has a slight forward lean.