Small 8vo, pp. l, 476 + folding frontispiece and 42 plates (many folding or double-page, two double-sided, most printed in colour). Several plans within the text bringing the total to ’19 cartes et 32 plans’. Original red flexible cloth boards, ruled in blind and lettered in gilt, marbled endpapers, salmon dustjacket printed in black. Edges soiled in places, some of the maps misfolded. Binding lightly soiled, dustjacket darkened and rubbed, split at front joint fold and with substantial loss from head of front panel, some wear elsewhere. A few pencil notes, primarily calculations.