Proceedings of the Society of Arts, 41S 



General Ohservatioiu. — All Communications shall be entitled 

 to compete for the Keith Medal which comply with the terms 

 of the announcement of that Prize, although falling under any 

 of the above specified subjects. 



The descriptions of the various inventions, &c. to he full and 

 distinct, and, when necessary, accompanied by Specimens, Draw- 

 ingsy or Models. 



The Society shall be at liberty to publish in their Transac- 

 tions copies or abstracts of all Papers submitted to them. All 

 Models, Drawings, &c. for which Prizes shall be given, shall be 

 held to be the property of the Society, — the Society being in the 

 practice of taking the value of the Model into account in fixing 

 the amount of the Prize, — and these and all others which shall 

 be approved of, shall be entitled to a place in the Museum. 



All Communications must be written on Foolscap paper, leaving 

 margins at least one inch broad on both the outer and inner sides 

 of the page, so as to allow of their being afterwards bound up with 

 others ; and all Drawings must be on Imperial Drawing Paper, 

 unless a larger sheet be requisite. 



The Society reserve to themselves the power of determining 

 whether any Communication be of sufficient merit to entitle it to 

 the Prize for which it competes, and of modifying the amount of 

 the Prize. 



All Communications to be lodged as soon aftei^ \st November 

 1840 as possible (except as in No. 8.), in order to insure their 

 being read during the Session; but those which cannot be lodged so 

 early, will be received till 1st March 1841. 



Communications, Models, &c. to be addressed to James Tod, 

 Esq. the Secretary, at the Museum of the Society of Arts, 

 G3 Hanover Street, Edinburgh, Postage or Carriage paid. 



Royal Institution, Edinburgh, 

 29th AprU 1840. 



SCIENTIFIC INTELLIGENCE. 



meteorology. 



1. Mr Espy^s Theory of Atmospherical Phenomena claimed by 

 MrMeihle of Edinburgh. — Respecting Mr Espy's theory of atmosphe- 

 rical plicnomena, the leading feature of which is the faU of tempei*a- 

 tiue which occurs in an ascending current of air, wo arc requested 

 by Mr Meikle, to state, that, in the Loudon Quarterly Jouinal of 



VOL. XXIXr NO. LYIII.^-OCTOBER 1840. B 6 



