The Sedghill incident reported by Armstrong and Faraday was confirmed [2] by Pattinson. The review by Schafhaeutl [2] suggested the source of steam electricity was connected with thedeposits on the boilerplates. Based on Faraday's suggestion that the nature of the water wassomehow connected to the steam electricity, Armstrong [3] tested other boilers using the samemine water and found the same results. Shortly thereafter, Pattinson [4] found the length of sparksfrom the discharge of electrified steam to be proportional to boiler gage pressure. In 1843, the notion of contact electrification by frictional charging was introduced to explain steam electricity. Armstrong [5] was of the belief that the source of electricity takes place at thepoint where the steam was subjected to friction but had great difficulty with the supposition thatfriction was the exclusive cause of the electricity.