Proceeding m of the Society of Arte. 405 



The following Candidates were elected as Ordinary Mem- 

 bers, viz. :-r- 



1. Mr William Biaikic, engineer, Panmurc Foundr}-, Edinburgh; 2. 

 Thomas Lebum, Esq. S. S. C, 7 Teviot Row ; 3. Holmes Ivory, Esq. 

 accountant, 13 Gloucester Place; 4. Thomas G. Scott, Esq. W.8., 33 

 Heriot Row. 



15M April, 1840. — William Galbraith, A.M., Counsellor, in 

 the chair. The following communications were made : — 



1. On the construction of Circular Signal Towers. By Edward Sang, 

 Ksq., M.S. A. (700.) Mr Sang promised to give a Model. Thanks voted, 

 and the Paper ordered to be printed in the Transactions. 



2. Remarks on the method proposed by Mr Sang for deducing the law 

 of mortality in England and Wales from the mortuary registers for 1838. 

 By William Inglis, Esq., S.S.C. 18 George Street, of Licensed Victuallers' 

 -Assurance Company. (712.) 



A discussion followed, in which Mr Sang and Mr Jnglis took a part. 

 Thanks voted ; and Mr Iriglis was requested to print his papers. 



3. Donation — On the influence of artificial light in causing impaired 

 vision ; and on some methods of preventing or lessening its injurious ac- 

 tion on the eye, by James Hunter, M.D. (M.S.A.) surgeon to the Eye 

 Dispensary of P]dinburgh. Edinburgh, 1840. Presented by the author. 

 (711.) Thanks voted. 



4. Donation — A series of eight engraved portraits of eminent horolo- 

 gists, viz., Tompion, Graham, Berthoud, Harrison, Ellicot, Mudge, Ar- 

 nold, and Reid. Presented by William Auld, Esq., 67 Great King Street, 

 Edinburgh. (708.) Thanks voted. 



In consequence of the time occupied in reading the previous communi- 

 cations, several others were postponed till next meeting. 



1. The following candidate was elected as an Ordinary 

 Member, viz. 



John A. Macrae, LL.D., W.S., 25 Duke Street. 



2. Motion by Robert Stevenson, Esq. " That from the 

 commencement of next Session, the days of meeting be ©hanged 

 I'rom Wednesday to Monday, at the usual hour, keeping clear, 

 as at present, of the day on which the Royal Society hold their 

 meetings." This motion was [)artly discussed, and adjourned 

 till next meeting, to give time to consider of the proposed 

 change. 



3. In terms oF Law XX. the list of prizes for Session 1840- 

 -11, as prepared by the Council, was submitted to the Society 

 for approval. It was adopted as altered. 



