Proceedings of the Society of Arts. 215 



11. A Tuning Fork with a scale engraved on it, so that any note may be 

 struck at pleasure. By Mr J. B. Mould, engraver, Edinburgh, M.S. A. 



The following candidates were admitted ordinary members, 

 viz : 



Mt Alexander Cowan, paper-maker, Moray House, Edinburgh, and H . S 

 Alves, Esq. 9 Royal Terrace. 



Mth May 1837. Robert Bald, Esq. V.P. in the Chair.— 

 The following communications were laid before the Society : 



1. Thirty-two specimens of Transfer and Chalk Lithographic and Zinco- 

 graphic Printing. By ^Messrs Allan and Ferguson, Lithographers, Glasgow. 



2. Twenty-two specimens of Transfer and Chalk Lithographic printing. By 

 Messrs Maclure and Macdonald, Lithographers, Glasgow. 



3. Model and Description of a new Paddle Wheel. By Lieutenant A. M. 

 Skene, R.N. Communicated by John Scott Russell," Esq. M.A., F.R.S.E., 

 Couns. S.A. 



4. Additional Remarks on the Use of Steam in Economizing Fuel. By 

 Andrew Fyfe, Esq. M.D- F.R.S.E., M.S.A. 



5. On some improvements in the construction of Galvanic Troughs. By 

 Andrew Fyfe, Esq. M.D., F.R.S.E., M.S. A.— The improved Troughs were 

 exhibited in action. 



6. On the Advantages of increasing the Adhesion of the wheels of Loco- 

 motive Carriages to the rails ; and on a method of increasing that adhesion ; 

 and also of preventing the wheels from starting off the rails. By Mungo 

 Ponton, Esq. W.S., F.R.S.E., Couns. S.A With drawings and JModels. 



Mr Ponton proposed to create a powerful attraction between the iron 

 rail and the tire of the wheel, by means of electro-magnetic apparatus, 

 thereby causing an increased adhesion without altering the weight of 

 the carriage. 



7. Donation Four specimens of the new Swedish Bank Notes, stereo- 

 typed and printed on paper of a peculiar kind, and one specimen of the old 

 notes, shewing the progressive improvement of the useful Arts in the North 

 of Europe. From Robert Bald, Esq. F.R.S.E.,V.P.S.A 



8. ]Mr Bald exhibited a specimen of Swedish Cutlery, and specimens of a 

 new coinage of Silver in Sweden, aud made some observations on the Swedish 

 Mint, from actual observation. 



9. Donation On the Temperature and Geological Relations of certain 



Hot Springs, particularly those of the Pyrennees ; and on the verification of 

 Thermometers. By James D. Forbes, Esq. F.R.SS.L. & E., &c. Printed 

 in the PhiL Trans. 183C. From the author. 



10. Donation Note relative to the Supposed Origin of the Deficient rays 



of the Solar Spectrum ; being an account of an Experiment made at Edin- 

 burgh during the Annular Eclipse of 15th May 1836. By James D. Forbes, 

 Esq., F.R.SS.L. & E. Printed in the Phi). Trans. 183C. From the Author. 



1 1. Donation Accounts of some Experiments made in different parts of 



Europe on Terrestrial Magnetic Intensity, particularly with reference to 



