Proceedings of iSocieties. 1T7 



aet. xxvii.—proceedings of societies. 



1. Proceedings of the Royal Society of Edinburgh. 

 March 16, 1829. — Professor Russell in the chair. 

 The following communications were read : — 



1. Observations on spontaneous emissions of Inflammable Gas, by R. 

 Bald, Esq. Civil Engineer. Published in this Number, p. 71. 



2. On the applicability of the Line of Continuity to created Beings, in 

 their relations to time and space, and its inapplicability in reference to their 

 relation to one another, by the Reverend Dr Fleming of Flisk. 



April 6. — Dr Hope in the chair. 



BiNDON Blood, Esq. M. R. I. A., and M. R. D. S., was admitted an 

 Ordinary Member. 



The Keith Prize, consisting of a gold medal and a handsome piece of plate, 

 lately adjudged to Dr Brewster for his Discovery of Two New Fluids in 

 Gems and other Minerals, was presented to him with an appropriate address 

 from the chair. 



The following communication was read : 



On the causes giving rise to the peculiar shape and figure of the land at 

 the margin of the sea, illustrated by maps and charts, by R. Stevenson, 

 Esq. Civil Engineer. 



April 20. — Professor Russell in the chair. 



The following communications were read : 



1. On certain new phenomena of colour in Labrador Felspar, with ob- 

 servations on its changeable tints, by Dr Brewster. 



2. On a new form of Cyanogen or its elements, by Mr J. F. W. John- 

 ston, M. A. 



This meeting closed the Society's 46th session. Adjourned till the ge- 

 neral annual meeting in November next. 



2. Proceedings of the Society for the Encouragement of the Useful Arts in 



Scotland 



March 18, 1829. — A special general meeting of the Society was held to 

 take into consideration the list of prizes prepared by the committee. 



April 1. — 1. A description and drawings of a Mangle of a new con- 

 struction, invented by Mr James Brown, wright, India Street, were read 

 and exhibited. 



2. Mr Hume's Turnip Extractor and Mr Dunn's apparatus for shawing 

 the effect of steam issuing from an aperture were exhibited. 



April 15. — 1. A Committee was appointed to examine into the merits 

 of Mr Brown's Mangle. Sectional drawings of the mangle were exhi- 

 bited. 



2. A notice of an Improved Cistern for Barometers, invented by Mr J. 

 Adie, together with an Illustrative Sketch, were read and exhibited. 

 From the superior mode of the adjustment of the mercury in the improved 

 cistern, the measurement of heights, by barometrical observation, will be 

 rendered much less liable to error. 



3. A machine for producing alternate intervals of light and darkness of 

 NEW SERIES. VOL. I. NO I. JULY 1829. M 



