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Dempsey, George Drysdale Tubular and Other Iron Girder Bridges: Particularly Describing the Britannia and Conway Tubular Bridges; With a Sketch of Iron Bridges and ... Art of Bridge-Building. With Wood Engravings
 Dempsey, George Drysdale Tubular and Other Iron Girder Bridges: Particularly Describing the Britannia and Conway Tubular Bridges; With a Sketch of Iron Bridges and ... Art of Bridge-Building. With Wood Engravings
Dempsey, George Drysdale The Practical Railway Engineer: Examples of the Mechanical and Engineering Operations and Structures Combined in the Making of a Railway
 Dempsey, George Drysdale The Practical Railway Engineer: Examples of the Mechanical and Engineering Operations and Structures Combined in the Making of a Railway
Dempsey, George Drysdale The Practical Railway Engineer: Examples of the Mechanical and Engineering Operations and Structures Combined in the Making of a Railway
 Dempsey, George Drysdale The Practical Railway Engineer: Examples of the Mechanical and Engineering Operations and Structures Combined in the Making of a Railway
Drysdale, George R. The Elements of Social Science; or, Physical, Sexual, and Natural Religion. An Exposition of the True Cause and Only Cure of the Three Primary Social Evils: Poverty, Prostitution, and Celibacy
 Drysdale, George R. The Elements of Social Science; or, Physical, Sexual, and Natural Religion. An Exposition of the True Cause and Only Cure of the Three Primary Social Evils: Poverty, Prostitution, and Celibacy
Dempsey, George Drysdale