Roper's questions and answers for stationary and marine engineers and electricians, with a chapter on what to do in case of accidents
A pocket examination manual of questions and answers for stationary and marine engineers and electricians, compiled by Stephen Roper and revised by Edwin R. Keller and Clayton W. Pike, published by D. McKay in Philadelphia in 1900 for licence candidates and working enginemen. The plates pair white-line indicator diagrams printed as luminous curves on dense black grounds with hatched sectional drawings of valves, cylinders and steam passages lettered R, V, E, S and C.
