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

Hook, Dr., examines Papin’s fountain, [351]; had seen the Marquis’s engine, [493].

Horse, artificial ring, [524].

Hour-glass fountain, [413], [414].

Hour water-ball, [444].

Hume, David, criticises the “Century,” [349].

I.

Imprisoning chair, [513]; one at Rome, [514].

Instrument, an arithmetical, [512]; for perspective, [529].

Invention, nature and progress of, [366].

Inventions, estimated number in the “Century,” [353], [354]; classified, [354]; “tried and perfected,” [355]; short list of, [357]; a series of early, [362]; early patented, [363]; the Marquis’s “quintessence of,” [555].