A treatise on hydrostatics
A university-level physics textbook on hydrostatics by the British mathematician Sir George Greenhill, published by Macmillan in London and New York in 1894 for students of mathematics and naval architecture. The plates are line diagrams: ship hull cross-sections with waterlines and hatched water, metacentre and buoyancy force vectors labelled with letters, circles with angle constructions, and an optical ray path to a focus "\u2014 usable as technical line art, arrow-and-label schematics, and hatching patterns.
