Archifau a Llawysgrifau Llyfrgell Genedlaethol Cymru

Samples 44. Examinations of the Rock Vein, Black Vein, Three Quarter, Garw and Yard Vein seams at the No. 10 Slope, Deakin's Slope and Lower Varteg collieries, with accompanying Fusion Point of Coal Ash reports.

Survey reports for Ty Trist Colliery,

Rhan oMonmouthshire and South Wales Coal Owners Association Records,

Samples 18. Examination of the Polka and Rhas Las seams; report on the fusion point of coal ash.

Survey reports for Ty Draw Colliery,

Rhan oMonmouthshire and South Wales Coal Owners Association Records,

Sample 60. Examination of Nine Feet Seam; report on fusion point of coal ash.

Survey reports for Treharris area,

Rhan oMonmouthshire and South Wales Coal Owners Association Records,

Samples 11. Analyses carried out mainly at the Deep Navigation Colliery on the Nine Feet, Six Feet, Upper Four Feet, Lower Four Feet and E seams; Seams in Manhole and Borehole; reports on spontaneous combustion and fusion point of coal ash.

Survey reports for Tredegar area,

Rhan oMonmouthshire and South Wales Coal Owners Association Records,

Samples 17. Examination of the Nine Feet Seam at Maclaren Colliery; Fusion Point of Coal Ash report.

Survey reports for Tower Colliery,

Rhan oMonmouthshire and South Wales Coal Owners Association Records,

Samples 57. Examination of the Nine Feet Seam; Fusion Point of Coal Ash report.

Survey reports for Tirpentwys Colliery,

Rhan oMonmouthshire and South Wales Coal Owners Association Records,

Samples 42. Examination of the Black Vein seam; Fusion Point of Coal Ash report.

Survey reports for St. John's (Maesteg) Colliery,

Rhan oMonmouthshire and South Wales Coal Owners Association Records,

Samples 51. Examination of the Lower Five Feet, Lower New, Two Feet Nine, and Upper Five Feet seems. Fusion point of coal ash report for the 4 Inch Seam found below the Five Feet Seam.

Survey reports for Seven Sisters Colliery,

Rhan oMonmouthshire and South Wales Coal Owners Association Records,

Samples 80. Examination of the Nine Feet, Cornish, and Peacock (Brass) seams.

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