1963. Reprinted with Corrections. 454 pages. Green pictorial paper cover. Black and white tables and diagrams throughout with two photographic plates through book. Binding remains firm. Pages have light tanning and foxing throughout. Diagrams and plates are bright and clear, with some light tanning and foxing to edges. Tear to top edge of first few pages with staining to bottom edge, text remains unaffected. Pencil inscriptions to first page and rear reverse cover. Paper cover has moderate edgewear with curling to corners and reading creases overall. Heavy wear marks to spine.