In the same 1892 Encyclopedia Britannica, under the subject Coal (spelle Cole prior to the 1600's), is a map showing a trough of coal running between the coal fields of Lanark and southern Ayrshire, through that region with which our interest has been focused these past few weeks, Lochwinnoch, Caldwell, Uplawmoor, Beith and Neilston. The encyclopedia states that to reach the coal in the relatively flat areas, vertical shafts, called colleries as of 1892, were dug. These would often be flooded by water welling up from the ground. So, were these originally called cole wells?