Cipher and character, [391]; a one-line cipher, [391]; the same refined, [392]; reduced to a point, [393]; varied significally to all the 24 letters, [394]; key to the Marquis’s cipher discovered, [552].

Claudius, of Rome, his Bucket fountain, [416].

Coach-saving Engine, [414], [415].

Conceited tinder-box, [439].

Condensation applied to ebbing and flowing, [419][421]; applied to drawing weights, [423][425]; applied to draught, [427], [428]; applied to two globes, [456][462]; noticed by J. Bate, [480].

Continually going watch, [508].

Conveyance, a secret comb, [511]; knife, spoon, or fork, [511]

Crock, [466]; Arquebuse à, [466].

Cross-bow, noticed, [474]; a double, [528].

D.