404 rroccedings of the Ixoyal Scottish Society of Arts. 



Mr Glover illustrated the subject by a variety of tables, diagrams^ and 

 experiments, exhibiting the various contributions which have been made to 

 our knowledge of tlie expansive effects of heat on elastic fluids, more espe- 

 cially of steam ; referring to the investigations of the late Professors "Robison 

 and Black; of Dalton and Gay Lussac on the laws of expansion, and tlie 

 recent corrections by Rudsberg ; the experiments of Ure and Southern, and 

 the Report by the Committee of the French Institute, on the elastic force of 

 high pressure steam. Mr Glover then traced the history of the steam-engine 

 from the early records of its employment in the idolatrous v. orship of Uie 

 Egyptians and Greeks, down to its perfection by the genius of Watt, — al- 

 luding curiously to the vai-ious modifications it has since undergone. 



Thanks voted, and given to Mr Glover from the Chair. 



II. The Report of the Prize Committee, awarding the Prizes for Session 

 1G40-41, was read; and the Prizes were deliA^ered by the President to the 

 successful Candidates. 



III. The Models, Drawings, &c. of Inventions, &c., for which the Prizes 

 have been awarded were exhibited. 



PRIVATE BUSINESS. 



I. The following Candidates were balloted for as Ordinary 

 Fellows, viz. : — 



I. Douglas Baird, Esq., Ironmaster, Gartsherrie. 2. David Thomson 

 Hope, Esq., Civil Engineer, 8 Russel Street, Liverpool. 



II. Lists of the Fellows as at 1st November 1841, were 

 laid on the Table ; and are to be circulated with the Fasciculus 

 of tlie Transactions about to be issued. 



III. The Society elected the following Office-Bearers for 

 Session 1841-42 :— 



The Queen, Patroness, 



Sir John Robison, K.H., F. R. S. E., President. 



John Shank Moke, Esq, rR.S.E. U-^^.p,,,,-^^,,, 



William Galbraith, A. M., J 



James Tod, Esq., W. S., Secretary. 



John Scott Moncrieff, Esq., Accountant, Treasurer. 



Ordinary Councillors. 



C. H. Wilson, A. R. S. A. Andrew Tawse. 



Alex. Bryson. Douglas Maclagan, M. D. 



Alex. Rose. Andrew Fyfe, M. D. 



W. Crawfurd. George Glover. 



Charles Cowan. Robert Wright. 



William Wood. Archd. Gibson. .,,,j 



Editor of Tramactiom,—'M. Ponton, Esq., F. R. S. E., 

 Curator of Mv.scum, (Vacant till now arrangements be madei) 



