258

INDEX.

R.

Page

Rent of mines, how regulated,.. 70

Richmond, Duke of, his duty on coals. 237

-, ditto sold to Government. 237

Ryan, Mr., on boring...73, 163

.. his system of ventilation as presented

, to the Society of Arts. 87

——-—, experiments of, at Hepburn.. • 96

S.

Scotland, duration of coals in. 25

Shafts, how made .... 76

-, arrangement of. 82

Sheriff Hill, explosion at. 103

■- , fire at. 103

Shirley, Hon. Mr., exertions of.... 71

Society for preventing accidents, &c. 146

-— origin of.:. 146

-Patron, Vice Patrons, and Members. 147

-Committee. 148

-first report of.. 151

Spars, nature of, in Durham. .. 4

St. Anthon’s colliery. 14

Steel mills. 84

Stephenson, Mr., his lamp..... 187

-- r, experiments upon. 188

Strata, intervening with coal.8, 19

Success pit, explosion of.... 100

Sunderland, charter to .. . 36

-, exportations of, in 1634. 36

-—, staithway at. 37

-—, exportations of, since 1710. 229

-, town’s dues. 240

Superintendent of mines. 215

T.

Tar mineral. 17

Tenure of mines. 69

Tees river. 6

Theories on the earth, &c... . 58