viii, 270pp [2]pp publisher's ads, 10 fold-out charts. Brown cloth-covered boards, gilt titles on spine. 8vo. Sun-faded spine, heavy wear to boards, heavily rubbed corners and spine ends with cloth worn through and fraying. Text block edges tanned. Endpapers foxing and tanning; front spine broken. Internally neat, clean, bright and tight.
The author was Resident Engineer for Pennsylvania Railroad Tunnels.
