216 Proceedings of the Society of Arts for Scotland. 



5. Specimens in metals, and other materials, of Effects which 

 may be produced in the Turning-lathe, by regulating movements of 

 the Tool and of the Object operated upon, were exhibited by the 

 same. 



April 22. — Mr Professor Foubes, V.P., in the chair. 



1. On the Application of the Compressibility of Water to prac- 

 tical purposes. By James D. Forbes, Esq. F.R.SS. L. & E., Pro- 

 fessor of Natural Philosophy in the University of Edinburgh, 

 Vice-President of the Society of Arts. 



2. Description of a Method by which Low-Pressure Steam was 

 carried to the distance of 193 yards to work a Steam-Engine for 

 draining a Coal-mine ; — also a Method for stopping the Trams or 

 Waggons from running down an Inclined Plane, if the Chain em- 

 ployed in dragging them up should break. By Mr D. Landale, 

 Mining Engineer, Wemyss, Fife. 



3. Remarks on the Glasgow and Garnkirk Railway, with illus- 

 trative Sketches. By Mr George Martin (at Messrs Grainger 

 and Miller's, Civil Engineers), 108 George Street, Edinburgh. 



4. Description of a New Clinometer, which serves also as a 

 Portable Surveying Instrument, or Theodolite. Invented by Mr 

 John Dunn, Optician, Hanover Street, Edinburgh, Curator Society 

 of Arts. — The instrument was exhibited. 



5. Donation. — Report to the Committee of the Commissioners 

 of the Northern Lights, appointed to take into consideration the 

 subject of Illuminating the Light-houses by means of Lenses. By 

 Alan Stevenson, Esq. M.A. Civil Engineer. Edinburgh 1835. 

 From the Author. 



6. The following Candidates were admitted as Ordinary Mem- 

 bers, viz. — J. Graham Dalyell, Esq. Advocate, Hanover Street; 

 James Borthwick, Esq. Manager of the North British Insurance 

 Company, 14 Claremont Street; Captain Robert Stuart, R.N., '2 

 Lynedoch Place ; Mr William Bryden, Bell-Hanger, 82 Rose Street. 



May 20. 1835. — Alexaxder Adie, Esq. in the Chair. 



1. Additional Specimens of Impressions from Type Plates, pre- 

 pared in a much shorter time, and at much less expense, than those 

 commonly used for Magazines and other periodical publications 

 having a very large circulation. By Mr L. Schonberg. Teacher 

 of Drawing and Languages, Aberdeen. 



2. Notices of Arrangements for Measuring the Angles of Crys- 

 tals viewed under a high magnifying power. By the Rev. Edward 

 Craio-, A. M. Oxon, Counsellor, Soc. Arts. 



3. Notice of a Walking Stick Umbrella, invented and used in 

 France. Communicaied by Robert Horsburgli, Esq. Treas. Soc. 

 Arts. The umbrella was exhibited. 



4. Notice of an Improved Form of Boots and Shoes, adapted to 

 the comfort of the wearer. By Mr James Dowie, boot and shoe- 

 maker to the King, 57 Frederick Street, Edinburgh, M. S. A* 

 Specimens were exhibited. 



5 Donation Nautical and Hydraulic Experiments; with nu- 



