Survey reports for St. John's (Maesteg) Colliery,
Part of Monmouthshire 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 Tirpentwys Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 42. Examination of the Black Vein seam; Fusion Point of Coal Ash report.
Survey reports for Tower Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 57. Examination of the Nine Feet Seam; Fusion Point of Coal Ash report.
Survey reports for Tredegar area,
Part of Monmouthshire 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 Treharris area,
Part of Monmouthshire 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 Ty Draw Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Sample 60. Examination of Nine Feet Seam; report on fusion point of coal ash.
Survey reports for Ty Trist Colliery,
Part of Monmouthshire 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 Varteg, No. 10 and Deakin's Slope Collieries,
Part of Monmouthshire and South Wales Coal Owners Association Records,
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 Waunlwyd Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 64. Examination of the Upper Black Vein seam; report on the fusion point of coal ash.
Survey reports for Werfa Dare Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 62. Examination of Nine feet seam; report on the fusion point of coal ash.
Survey reports for Wern Fawr Colliery, Dunvant,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 71. Examination of the Five Feet and Six Feet seams.
Survey reports for Wern Tarw Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 75. Examination of the No. 3 Rhondda, Hafod, Pentre and Six Feet seams.
Survey reports for Wernbwll Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 39. Examination of the Penclawdd and Penlan seams; Fusion Point of Coal Ash reports.
Survey reports for Wyllie Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 22/250, 390, 520, 530, 544, 549, 555, 570 and 580 Yard Seams; other reports on special samples and fusion point of coal ash.
Survey reports for Ynisarwed Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 65. Examination of Nine Feet and Peacock seams.
Survey reports for Yniscedwyn Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 88. Examination of Nine Feet Seam.
Survey reports for Ynyshir area,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 31. Analysis of Nine Feet Seam at the National Colliery, Ynyshir.
Survey reports for Ynysybwl area,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 12. Examination of the Nine Feet Seam at the Lady Windsor Colliery, Ynysybwl.
Survey reports for Ystradgynlais Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Sample 89. Examination of the Nine Feet, or Big Vein, seam.
Swansea Chamber of Commerce: King's Dock,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Material comprising letters and correspondence, official statements, and copies of meeting minutes, relating to a deputation to the Great Western Railway Company by members of the Monmouthshire and South Wales Coal Owners Association and the Swansea Chamber of Commerce requesting an additional entrance to Swansea docks. Also material relating to a minor accident at the King's Dock Lock.