1900. Fifth edition. 647 pages. No dust jacket. Green cloth with gilt titles to spine. Includes various diagrams. Pages rather marked with pronounced tanning, foxing and thumbing, Front endpaper and pre title page torn out. Previous owner's drawings to endpapers. Hinges and gutters cracked with exposed netting, but text block remains firm. A few dog-eared corners. Occasional minor marginalia and underlining. Boards have some moderate edge wear, with slight bumping to corners and minor bumping to spine ends. Very slight splitting to joint ends. Slightly scratched overall. Boards a little rubbed and marked overall. Gilt is bright.