Edward Bogg

“ On the Lincolnshire coast, a considerable quantity of coal agreeing in properties and appearance with the latter of these varieties, is washed up by the sea, and is often collected by the poorer sort of the inhabitants for fuel; and along with this particular species of coal, slates similar to those in the shale measures often occur, a fact which gives us reason to suppose that the seam of coal from which these specimens have been displaced extends under the incumbent strata already noticed, into the sea, where the coal seam is denudated and from whence these washings proceed. ”

“ This bed never extends to any great distance beyond the chalk, forming in general a sort of step at the foot of its basset. Lumps of pyrites are frequently met with in the limestone. The thickness of the entire bed of stone and clay may be about twelve or fourteen yards: it forms a close measure, and I apprehend supports the water collected by the open strata which repose upon it, for water is always found either in the chalk or in the ferruginous sand immediately below it, the well sinkers never having occasion in this district to go deeper. ”

“ As the discovery of coal would be a circumstance of much importance to this country, it might be worth while to have it ascertained whether a seam of this jetty coal (called by the country people gromel) does not exist in sufficient thickness, and at such a depth, as would render it worth the miner's pursuit ”