The Britannia and Conway Tubular Bridges. With General Inquiries on Beams and on the Properties of Materials used in Construction.

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2 text volumes only of 3 (lacks pl vol) VG, 1st ed, 1850, in red cloth, spines faded, gilt titles. Vol 1, map frontis, [3], (vi-xii), [1], 2-466 pp, 9 pls (includes 1 map). Vol 2, [3], (vi-vii), [1] pl list, [1], 2-821 pp, [1], (iv) subscribers list, 9 pls, both volumes lack half titles, evidence of removed book plate to both fpds, numerous illustrations within text. (235*148 mm). (Allibone 333. Anderson 346). Vol 1 contains a History of the Design. Section II. The Preliminary Experiments. Section 111. General Principles of Beams. Section IV Specific Experimental Inquiries and numerous tables and sketches within the text block. Volume 2 contains chapters on - Section V. History of the Design. Section VI Details of Construction of the bridges. Section VII The Construction and Erection of the Bridges. Section VIII Strength and Deflection of the Tubes. Section IX The Tides followed by an Appendix, which goes into the Contracts and Cost of the Bridges, Persons Employed in the Works and the Index plus numerous tables and technical sketches amongst the text blocks. Clark was elected a member of the Institution of Civil Engineers, December 1850, and contributed many papers to their Proceedings, being awarded a Telford medal in 1866 for his paper -On the hydraulic lift graving dock-, and a Watt medal in 1868 for those on -The durability of materials-. Two years' residence in Buenos Aires, Paraguay, and Uruguay, provided material for his Visit to South America (1878). (ODNB)