Proceedings of Session 1889-90

Abstract

Society's Rooms, 207 Bath Street, 10th October, 1889. Mr. Daniel M'Millan, Vice-President , in the Chair. The Chairman welcomed the Members and hoped that the Session just commenced might prove no way behind any of its predecessors in interest and value. Mr. Robert Woodburn Gillan, Indian Civil Service, The Manse, Carmunnock, was elected an Ordinary Member. Mr. John Young, F.G.S., exhibited a fine series of specimens of Polyzoa and Monticulipora, comprising over 20 species, discovered by himself this summer at Kirktonholm, East Kilbride, in Carboniferous limestone shale. He explained that most of the specimens exhibited were extracted from blocks of shale which had been partly burnt in the kilns. The shale in its natural condition is of a dark blackish grey colour, but it changes through burning to a rock of a yellowish grey, the fronds of the Polyzoa being a brownish black, and their lace-like structure contrasting more strongly with the colour of the stone than when found in unburnt shale. Mr. Joseph Sommerville, V.P. , exhibited a fine Quartz Crystal, with a Cavity containing Fluid, from the Calciferous Sandstone of New York State, U.S. Such specimens are geologically of great interest. Remarks on the subject of fluids enclosed in mineral cavities were made by Messrs. John Young, F.G.S., James Thomson, F.G.S., R. Dunlop, and other members. The Hon. Secretary (Mr. James B. Murdoch), on behalf of Mr. James Bennie, of the Geological Survey of Scotland, read a paper entitled “On Things New and Old from the Ancient Lake of Cowdenglen, This 250-word extract was created in the absence of an abstract