XX] 



Monday Evening, June 21st, 1880. 



Section I. — Physical and Experimental Science. 



(With which, the " Dublin Scientific Club" is associated.) 



R. G. R. TiCHBORNE, PH.D., F.C.S., in the Chair. 



The following Communications were laid before the Section : — 



Howard Grubb, m.e., f.r.a.s. — " On a new Simple Form of Equatorial 

 Telescope for Students' Use." 



0. A. Cameron, m.d. — " On the action of Water on Mercuric Sulphate." 

 (Proceedings, Vol. II., N.S.) 



H. N. Draper, f.c.s. — "On the influence of Albumen on the Crystal- 

 lization of Nitrate of Urea." 



J. Emerson Reynolds, m.d., f.r.s. — Exhibited Meyer's "Vapour Density 

 Apparatus, and Dr. Dupre's Mode of Testing Wine for foreign 

 colouring matter. 



Section II. — Natural Science. 



(With which the " Royal Geological Society of Ireland" is 

 associated). 



Edward Hull, ll.d., f.r.s., in the Chair. 



The following Communications were laid before the Section : — 



Y. Ball, m.a., f.g.s. — " On the mode of Occurrence and Distribution of 

 Diamonds in India." 



(Proceedings, YoL II,, N.S.) 



Thomas Plunkett, m.r.la, — " On Chert in the Limestone of Knockbeg, 

 Co. Fermanagh. 



(Proceedings, Yol. II., N.S.) 



