Proceeding 8 of the Society of Arts. 403 



gas when illumination is the only object, and provided, of course, so much 

 lig-ht is required ; and that the single jet is the most unprofitable, and 

 ought never to be used. When the light of a single jet only is required, 

 he mentioned that it is much better to liave a. burner with two or three 

 holes so near each other that there shall be only one flame. When this 

 is so used as to give the light of a jet, it consumes from 10 to 20 per cent, 

 less of gas, thus causing a great saving to those who burn by meter. 

 Thanks voted, and to be printed in the Transactions. 



2. Model and Description of Apparatus for saving the lives of persons 

 falling into any loch or standing water, on the ice giving way. By Mr 

 Gavin Kay, Plumber and Gas-fitter, 18 Preston Street, Newington, Edin- 

 burgh. (603.) Referred to a Committee. 



3. Essay on Life Assurance, Part IV. — On the money values deduced 

 from the various Bills of jNIortality. By Edward Sang, Esq. Actuary, 

 Edinburgh. (676.) 



Note. — Mr Sang obtained permission from the Society, at a former 

 meeting, to print this part of his Essay, along with the pre- 

 ceding Parts, in order that those inclined to discuss the subject 

 might have the whole fullj'' "before them. 



A discussion followed upon these Essays, in which Messrs Borthwick, 

 Wood, Finlay, and Sang took a part. Mr Wood opposed some of Mr 

 Saug's doctrines. Thanks voted to Mr Sang, and the Essays ordered to 

 be printed in the Transactions. 



4. Remarks on a portion of an Essay read before the Society of Arts 

 for Scotland, January 1840, on the subject of" What constitute the Pro- 

 fits of a Mutual Assurance Society; and on the only equitable method of 

 dividing these among the Members." By a Member of the Scottish Pro- 

 vident Institution. Printed at London, February 1840. Communicated 

 by Alex. Bryson, M.S.A. (701.) 



Note. — Mr Bryson proposed that this printed paper should be read, 

 by permission of tl\e Society. 



The Society held that the Paper being anonymous, could not be read 

 as an original Communication. Mr Sang then moved, that the Paper be 

 read as part of the discussion on his Essay. Agreed to. 



I. The following Candidates were elected as Ordinary Mem- 

 bers, viz. 



1. Wm. Wallace Fyfe, Esq. Writer, 11 Clarence Street: 2. Patrick 

 Shaw, Esq. Advocate, 62 North Frederick Street ; 3. David Cormack, 

 Esq. S.S.C, 4 Pitt Street ; 4, Wm. TumbuU, Esq. (of Royal Biink) 

 20 Great Stuart Street ; 5. D. Berwick, Esq. Insurance Company of Scot- 

 land, 10 St Andrew Square. 



II. Mr Alexander Rose, Lecturer on Mineralogy and Geo- 



