Show digging OU oil from the ground not all americans know it but petroleum was produced in scotland long before it was found in the United States 1 in scotland it 1 Is got from a shale rock and it is not found in a liquid state at all for many years the mining and refining of this shale was a vast industry it Is still important but as american refined oil can be sold cheaper in scotland thin than the product of that country there has been a great falling ot off of the scottish product the scotch shale ehala is black and is found feet below the surface in a region known as the oil fields of west calder between edinburgh and glasgow paraffin wax ammonia and lubricating oil in addition to illuminating oil are made from the crude oil or tar that is got from the shale by crushing exchange A |