Barometer gauge, the, [123]
Belidor, [133]
Birmingham and London railroad, probable advantages to be derived from, [206]
Black, Dr., his doctrine of latent heat, [76]
Blasco de Garay, his contrivance to propel vessels, [42]
Blinkensop, Mr., constructs a locomotive engine, [161]
Boiler, methods for showing the level of water in the, [118.]
Its power and proportions, [297]
Bolton, Matthew, his connexion with Watt, [88]
—— and Watt, Messrs., immense expenditure of, in bringing their engines into use, [91]
Booth, Mr., his method of using tubes to conduct heated air through locomotive boilers, [176].
His report to the directors of the Liverpool and Manchester railway on the apparent discrepancies of Messrs. Walker and Rastrick's estimate of locomotive power, [189]