Glas or Glass John
Glas or Glass John, founder of the sect of Glassites, was born at Auchtermuty, September 21, 1695. He was educated at St.Andrew's, and in 1719 became minister of Tealing. In 1727 he published a book to prove that Church establishments are inconsistent with the Gospel, for which he was deposed by the General Assembly. He imbibed a number of other peculiar opinions and gathered followers, who were called by his name in Scotland, but in England and America they were denominated Sandemanians. Glas died at Dundee in 1773. His works were published at Edinburgh in 4 volumes, 8vo, and in a second edition at Perth (1782, 5 volumes, 8vo). Among the most celebrated members of the sect was Michael Faraday. For the peculiar opinions of the sect, SEE SANDEMANIANS.