GLASSITES, a Christian sect founded in Scotland about 1730 by John Glas (1695-1773), a minister of the Church of Scotland, who in 1730 was deposed for denouncing all national establishments of religion as “inconsistent with the true nature of the Church of Christ,” and maintaining that a Church and its office-bearers owed allegiance to none other than Christ; the sect, which developed peculiarities of doctrine and worship in conformity with those of the primitive Church, spread to England and America, where they became known as Sandemanians, after Robert Sandeman (1718-1771), son-in-law to Glas, and his zealous supporter.

GLASTONBURY (4), an ancient town in Somersetshire, 36 m.  S. of Bristol, on the Brue; it is associated with many interesting legends and historical traditions that point to its existence in very early times; thus it was the Avalon of Arthurian legend, and the place where Joseph of Arimathea, when he brought the Holy Grail, is said to have founded the first Christian Church; ruins are still extant of the old abbey founded by Henry II., which itself succeeded the ancient abbey of St. Dunstan (946); there is trade in gloves, mats, rugs, &c.

GLEIN, LUDWIG, German lyric poet, known as Father Glein for the encouragement he gave to young German authors; composed war songs for the Prussian army (1719-1803).

GLENCOE, a wild and desolate glen in the N. of Argyllshire, running eastward from Ballachulish 10 m.; shut in by two lofty and rugged mountain ranges; the Coe flows through the valley and enhances its lonely grandeur.  See following.

GLENCOE, MASSACRE OF, a treacherous slaughter of the Macdonalds of that glen on the morning of 13th February 1691, to the number of 38, in consequence of the belated submission of MacIan, the chief, to William and Mary after the Revolution; the perpetrators of the deed were a body of soldiers led by Captain Campbell, who came among the people as friends, and stayed as friends among them for 12 days.

GLENDOWER, OWEN, a Welsh chief and patriot, a descendant of the old Welsh princes who stirred up a rebellion against the English under Henry IV., which, with the help of the Percies of Northumberland and Charles VI. of France, he conducted with varied success for years, but eventual failure (1349-1415).  See Shakespeare’s “Henry IV.”

GLENLIVET, a valley in Banffshire, through which the Livet Water runs, about 20 m.  SW. of Huntly; famed for its whisky.

GLENROY, a narrow glen 14 m. long, in Inverness-shire, in the Lochaber district; Fort William lies 13 m.  NE. of its SW. extremity; the Roy flows through the valley; the steep sides are remarkable for three regular and distinctly-formed shelves or terraces running parallel almost the entire distance of the glen, the heights on either side exactly corresponding; these are now regarded as the margins of a former loch which gradually sank as the barrier of glacial ice which dammed the waters up slowly melted.