PREFACE The object aimed at in ths work is the collection and classification in one handy volume of all the known devices and methods in use in every branch of civil engineering work, in the form of sketches or brief drawings and descriptions, sufficient to enable an engineer to make a selection without overloading the matter with detail, which every competent engineer can readily design for himself. There are numerous published works dealing with special branches of engineering, or parts of such, in full detail, which may be consulted for details; but no general illustrated index such as is presented in the following pages. It is hoped that this index may be of the same service to the active civil engineer as the Engineer's Sketch-book has proved to be to the mechanical engineer. T.W.BARBER