William Jeakes, London. Water regulator to boiler. Joseph Bower, Leeds. Omission of air pump. William Wigston, Derby. "Certain improvements."

Robert Higgin, Norwich. Destroying smoke.

James Surrey, Battersea.

Furnace.

James Christie, London. Furnace.

Bienne, 153
Billingsley, M. 212, 213
Birmingham, 65
Binns, J. 218
Bishop, J. 211

Blakey, J. 50, 86, 209
Blundel, G. 210
Black, Dr. 101, 110
Blowing valve, 129
Boaz's engine, 173, 212
Boat moved by gunpowder, 148
Bodley, P. 214

Boiler, spherical, 75, 76
18, 86, 36, 169

open, 43
Branca's 6
cased, 69
Perkin's, 203
Watt's,
Blakey's, 90

guage, 136

self-acting, 159

Bolton and Watt, 91, 185, 124, 125

Mr. Matthew, 121, 122, 191

Bolting beams, 119

-cylinder, 74

Booker, N. 216

Bossut, 53

Bourne, T. 215

Bradley, Professor, 42

Bower, J. 219

Bradley, J. 215

Brake on air pump, 129

Bramah, T. 160, 161, 210, 211

Branca, Giovanni, 5, 10, 13, 17
inventor of steam engine

Brass cylinder, 99

-kettle, 92

Brewster, Dr. 4, 103, 149, 18

opinion of Hulls, 83

Brindley's boiler, 99

Brindley, J. 91