The principles of physics
A secondary-school physics textbook by Alfred P. Gage, published by Ginn in Boston and London in 1895 for classroom and laboratory teaching. The 241 wood-engraved figures show apparatus in line and hatched shading — dynamos with wound field magnets and ring armatures, pulley-and-weight rigs, lettered geometric diagrams on shaded slabs — useful as labelled technical line art and arrow-marked current paths.
