Both are essential to the origin of.

— 137 Bessemer, Henry (1813-1898) — 71 Bosanquet, James Whatman (1804- 1877)— 371, 401 Bright, John (181 1-1889)— 25, 244, 269, 634 Colbert, Jean Baptiste (1767-1832) — 84, 116, 152, 161, 187, 199, 342.