APPENDIX.
843
4. Rhymney Brassey vein, 15 inches thick; used for work-men’s fires. Lamina; twisted, without any regular cleavage.
Lost in coking . . . 14*37
Semi-bituminous coal coke . . 85*63
- 100 parts.
Analysis :—Volatile in coking . . • 14*37
Carbon .... 83*38
Pink-coloured ash . . . 2*25
- 100 parts.
5. Rhymney Red Coal vein, 3 feet 6 inches thick; furnace.Bright and reedy, intermixed with carbonaceous clod in thedirection of the lamina;; sectional fracture; granular.
Lost in coking . . . 12*75
Semi-bituminous coal coke . . 87*25
- 100 parts.
Analysis:—Volatile in coking . . . 12*75
Carbon .... 84*25
Ashes of a light brown . .3*
- 100 parts.
6. Rhymney Yard Coal; used in the blast-furnace. Laminaeirregular, passing across the bed of the coal obliquely ; sectionalfracture, occasionally specular.
Lost in coking . . . 16*20
Semi-bituminous coal coke . . 83*80
- 100 parts.
Analysis :—Volatile in coking . . . 16*200
Carbon .... 80*925Light brown ashes . . . 2*875
- 100 parts.
L Rhymney four-feet Coal; used at the forges and mills.In regular boards or laminae in the lengthway of the coal; sec-tional fracture, with vertical prisms, slightly oblique.
Lost in coking . . . 15*10
Semi-bituminous coke . . 84*90
- 100 parts.
Analysis:—Volatile in coking . . . 15*10
Carbon .... 80*15Light buff-coloured ashes . . 4*75
- 100 parts.