HUMBER (WILLIAM) A Practical Treatise on Cast and Wrought Iron Bridge Construction. Including Iron Foundations, 2 vol., third edition, mounted albumen print frontispiece of the Royal Albert Bridge by ROGER FENTON, tinted lithographed second frontispiece and 103 lithographed plates (many folding), 1870; A Comprehensive Treatise on the Water Supply of Cities and Towns, hand-coloured lithographed frontispiece and 50 double-page lithographed plates, 1876, Lockwood--RANKINE (W.J.M.) The Cyclopaedia of Machine and Hand-Tools, plates, W. Mackenzie, 1869, some institutional ink and blind stamps, contemporary half morocco, rubbed, large 4to; and 19 others (23)