The Life, Times, and Scientific Labours of the Second Marquis of Worcester / To which is added a reprint of his Century of Inventions, 1663, with a Commentary thereon.

by Henry Dircks

Petty, Sir William, his discourse, [365].

Pincked Glove alphabet, [435].

Pistol, oft-shooting, [462]; ancient use of, [473]; improved, [474]; light barrels, [511].

Pleasant floating garden, [413].

Pneumatic propulsion, [412].

Pocket Ladder, [447], [448]; engine to open doors, [527].

Point, a cipher reduced to a, [393].

Portable “pocket” engine, [400]; bridge, [428], [429]; fortification, [429]; engine, or ladder, [445]–[448].

Porta’s steam apparatus, [541].

Powder flask, noticed, [474].