300 The Philosophical Society of Glasgow. 



Bellstde Ironstone. — At 1 32\Fatho))is — Average Thickness,! Inches. 

 — This is a Blackband ironstone of very good quality, ranging in 

 thickness from four to nine inches. It is worked extensively at Bell- 

 side and Greenhill, in the parish of Shotts. It was worked at New- 

 mains some years ago, at a thickness of about four inches. It is also 

 seen at Castlehill, but not of very good quality. On the Wishaw 

 Estate it was bored through some years ago, and found valueless. 

 Estimated area still to work, 1,000 acres. 



Caxdeebrai; Ironstone. — At 134 Fathohis — Average Thickness, 8 

 Inches. — This ironstone is sometimes called the Kiltongue Mussel iron- 

 stone, and in some places resembles the Palace Craig band in point of 

 quality. There is a considerable quantity of it in the New Monkland 

 parish, and it is worked at Stand, on the Rochsoles Estate, where the 

 section consists of a thin baud of ironstone and one of gas coal, the 

 latter of a very fine quality, and resembling slightly the nature of the 

 Torbanehill Parrot. At Braes, in the New Monkland parish, on the 

 north road to Slamannan, it has also been worked. It exists likewise in 

 the lands of Arden, but has not yet been worked. At Whiflat it is 

 twenty inches in thickness, but contains a very small per centage of 

 iron, and consequently not workable. At " Peep o' Day," on the 

 Monkland Estate, near Airdrie, this band of ironstone is in the 

 position of the Kiltongue coal. Estimated area still to work, 4,400 

 acres. 



Kiltongue Coal. — At 136 Fat/ioms — Average Thickness, 60 Inches. 

 — Like the Virtue "Well coal, this seam is not seen in the Glasgow dis- 

 trict. We begin to recognize it as we go eastwards, at BartonshiU. 

 At Drumpeller it exists in its best state, where it is about six and 

 a-half feet in thickness. It is usually divided in the middle by a stone 

 or shaly substance, varying in thickness from four to thirty-six inches, 

 as at Hayhill and Kilgarth, near the north limit of the field. In 

 quality it is somewhat irregular, — sometimes it is hard, and well suited 

 for iron-smelting, — and sometimes soft, and better suited for the pur- 

 poses of the household. On the north of the field this seam is worked 

 at HayhiU, Kilgarth, Cleugh, and Drumgray, from which it passes 

 into the county of Stirhng, where it takes the name of the Splint coal, 

 and is worked under that name as far as Redding and Blackbraes on 

 the east, and Arnloss, Drumclair, Limerig, and BinniehiU, on the 

 south. In Lanarkshire it extends as far south as Castlehill, where it 

 is called the four feet coal. At Koughrig and Drumclair, on the 

 Slamannan railway, it is converted into a steam coal, from its proximity 

 to a large whinstone dyke passing through these fields. Estimated 

 area still to work, 9,721 acres. 



