Obituary — Captain Lewis Moysey. 189 



Specimens were exhibited from Locliend Pit (Tipper Driimgray 

 Seam), Drumbon Pit (Upper and Lower Drumgray Seams), and from 

 Eastfield Pit (Upper and Lower Drumgray Seams). 



Coal apples were found by Mr. Masterton during the years 1911 

 to 1913, and he exhibited specimens from the following localities: 

 ( 1 ) Moncur Colliery, Kilwinning — in the Ell Seam in a reversed fault, 

 and where a line of face was slightly baked and approaching a whin 

 dyke ; (2) Littlemill Colliery, Rankinston — Main Seam, where the 

 working face was approaching a whin dyke ; (3) Earallan Colliery, 

 Old Cumnock — Maid Splint Seam, in a place going parallel to a whin 

 dyke, and 25 yards distant from it; (4) Ponfeigh Colliery, Douglas, 

 Lanarkshire — apples described by the manager as occurring near 

 a whin dyke, the coal becoming coke close to the dyke. 



Mr. Masterton advanced the opinion that the coal apples were 

 pieces of coal matter either of harder nature or of less volatile content 

 than the surrounding parts of the seam, and that these parts resisted 

 the compression and " flux ", if the term can be used, better than the 

 rest of the seam. 



2. " The Eaw Materials of the Glass Industry." (With lantern 

 illustrations.) By G. V. Wilson, B.Sc, F.G.S. 



A brief description was given of the materials needed for the 

 manufacture of glass, with special reference to the quality of sand 

 used. The essentials of an ideal sand were pointed out, namely, 

 high percentage of silica, freedom from ferruginous materials, and 

 absence of refractory minerals, such as rutile and zircon. Attention 

 was drawn also to the importance of the size and shape of the grains. 

 Analyses of Fontainebleau and Dutch sands were compared with 

 those from the best Scottish localities. None of the latter are quite 

 equal to Eontainebleau, but several are as good as, if not better than, 

 Dutch. The essential qualities of the clay for making glass pots 

 Avere also noted, such as high plasticity, high refractory quality, and 

 freedom from iron in any form. The paper was illustrated bv 

 lantern slides, many of which were photomicrographs showing the 

 minerals formed by the devitrification of a large body of glass. 



OBITTJ-A.K.'Y'. 



CAPTAIN LEWIS MOYSEY, 

 R.A.M.C, B.A., M.B., E.G.S. 



Born 1869. Died February 26, 1918. 



We much regret to learn of the death of Dr. Moysey, who was 

 lost on the hospital ship Glenart Castle, which was torpedoed on 

 February 26. Dr. Moysey had only just joined this ship, as one of 

 the medical officers, and he was not among those subsequently 

 rescued. 



Dr. Moysey was a graduate of Caius College, Cambridge, and a 

 medical man who had long been in practice at ISTottingham. He 

 was mobilized in the early days of the War, and until quite recently 

 he had been occupied with regimental work in this country. 



