INDEX.

A. Page

ACCIDENTS, calculation of, by Mr. Buddie.... 171

.Afterdamp. 52

Air, inflammable. 15

«• . — , analysis of, by Dr. Clayton. 15

■ ---—, by Mr. Kirwan. 16

■ -, changes in proportions of.. 109

Alumine, found in coal works. 169

Ammonia from coal. 17

Appendix. ... 249

Arts, Society of, its proceedings on Mr. Ryan’s

system of ventilation. 87

Ayton, dyke at. 23

Azote. 194

B.

Bakewell, Mr., on the duration of coal.. 25

Beaumont, Mr., on coal trade. 227

Bitumen in coals. 17

Blackstone, Sir W. on private property.. ... 163

Boards, how worked. 77

Boring. 71

-, new method of, by Mr. Ryan. 73

—-, to detect wastes... 167

Bovey coal. 17

Boundaries, bad effects from not being known. 122

Brandling, Mr., his lamp as presented to the Literary

and Philosophical Society of Newcastle. 184

Brocken mountain, curious formation of.. 66

Buddie, Mr. his letter to Sir R. Milbanke, Bart.

on ventilation.. 151

.-.-, observations thereon.. 152

Buffery colliery. 92

Buffon, M. de, his theory... 60

Building Hill, its lime-stone. 21

Burnet, lfls theory. 59