212 Proceedings of the Society of Arts. 



4. Donation, — "Report of the Directoi"s of the Liverpool Mechanics' Insti- 

 tution, in March 1836. From the secretary to that institution, per E. Sang, 

 Esq. 



\5th March 1837.— Robert Bald, Esq. V.P. in the Chair.— 

 The following communications were laid before the Society : 



1. Alodel and an Account of a New Voltaic Battery, being a modification 

 of the construction recommended by Mr Faraday. By Mr James Young, 

 Chemical assistant in the Andersonian University, Glasgow — Mr Young 

 exhibited the Battery in action, and performed a number of interesting ex- 

 periments, shewing the power of this Battery. 



2. Part fii-st of a dissertation on the Fallacies of the Rotatory Steam-en- 

 gine. By John Scott liussell, Esq. M.A., F.R.S.E., Couns. S.A. 



3. Mr Sang exhibited the Model Steam Boat, constructed for the late Pro- 

 fessor Leslie, on the principal of Barker's Mill. 



4. Notice of the Theoretical Power of Barker's Mill. By Edward Sang, 

 Esq. F.11.S.E., Couns. S.A. 



5. Mr Ruthven again exhibited the "Working Model of Avery's American 

 high pressure Steam-engine. 



C. The large model of the Architectural Arrangements proposed by Mr 

 Alexander IMurray, of the Caledonian Pottery, Glasgow, for promoting ge- 

 neral education, combined with religious instruction. Communicated by Dr 

 D. B. Reid, Couns. S.A. was again exhibited. 



The following candidate was admitted an ordinary member, 

 viz : 



John Bell, junior, Esq. W.S. 13 Great King Street. 



29i/i March 1837.— Alexander Adie, Esq. F.R.S.E. in the 

 Chair. — The following communications were laid before the 

 Society : 



1. A vertical Orrery on an extremely simple principle, calculated for be- 

 ing used in Seminaries ; having only one Wheel and Pinion, and yet exhibit- 

 ing the motion of the Earth round the Sun, and of the Moon round the 

 Earth : the Parallelism of the Earth's Axis, and the Phases of the Moon. By 

 the Rev. George Tough of Aytoun, Assoc. Soc. Arts. — The Orrery was ex- 

 hibited and described by ]\Ir Tough. 



2. Part second of a dissertation on the Fallacies of the Rotatory Steam- 

 engine. By John Scott Russell, Esq. M.A., F.R.S.E., Couns. S.A — In 

 this second part Mr Russell considered the practical difficulties in construct- 

 ing rotatory steam-engines, as also the want of durability occasioned bj the 

 unequal motion of the parts. 



3. Notice of the Theoretical power of Barker's Mill. By Edward Sang, 

 Esq. F.R.S.E., Couns. S.A. 



4. Mr Gall exhibited a working model illustrative of the principle of 

 Avery's American high pressure steam-engine. 



