The Transactions of the Royal Irish Academy Volume 5
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1792 edition. Excerpt: ...the first seam or band is called the Crow Coal, which is two feet two inches thick. It lies at the depth of sixty yards. The second seam or band is called the Yard-band, in thickness four feet six inches, and lies at the depth of one hundred and sixty yards. The third seam is called the Bannock-band, about eight feet thick, including two metals, which are about twelve inches thick. It lies at the depth of two hundred yards The fourth seam is called the Main or Prior-band, which is from ten to twelve feet thick, and about two hundred and forty yards deep-. The fifth seam is called the Six-quarters Coal, about five feet thick. It lies at the depth of three hundred and twenty yards No part of this last seam has been yet wrought. What other seams lie below these is yet unknown. No trial has been made above twenty yards below the fifth seam, which makes the greatest perpendicular depth hitherto funk L 1 2 to to be three hundred and forty yards below the earth's surface. It would not be difficult to perceive, before any coals were got, that this tract of land contained seams or bands of coal, because the Bannock or third seam, and the Main-band or fourth seam, before mentioned, have burst out, as it is termed at Whitehaven; that is, they shew themselves in several places on the sloping surface of the earth, on the west side of the valley leading from Whitehaven to St. Bees. To the southward of this colliery these seams of coal are also thrown much nearer the surface by what is called upcast dykes (words which will be hereafter explained) the largest of which is about forty yards. At a pit called "Wilson's pit, which is the most southern pit in this colliery, the main band or fourth seam before-mentioned lies only about one hundred and...
- Paperback | 112 pages
- 189 x 246 x 6mm | 213g
- 13 Sep 2013
- Illustrations, black and white