Vot. o4,. I^bilosophical Magazine. Tvly 181 



•w5^'A-s>j»-* 



Contents of Number 25o. 



I. On the Question "Whether Music is necessary to the 

 Orator, — to what Extent, and ho\v most readily attainable r"' 

 By'-HsKRY Upinston, Esq. - . - ' w m Page 



II. Report by the Select. Qotnttiittee of the House of Com- 

 mons, on'Mr. Telford's Plan for building a Hanging Ircti 

 Bridge across the Menai Strait. - - - 11 



III. On the Nature und L<iws of Friction : being a Cort- 

 tinuation of the Paper on tlie <;ame Subject given in oUr last 

 Volume. By Mr.' Thomas 'rREDGOLD. - .- 



IV. Account of the Climate, Natural Products, Arts, and 

 Manufactures of the Kingdom of Ashantee and some of the 



.^ 1^ Territories adjacent. By T. Edward Bowdich, Esq. - '. 

 ^jf|^ V. On finding the Longitude by Lunar Observations. 

 r^v^ Syivlr. Henry Me!*i.e. • - * - : 



W||N| VL On Aerolites. - - - - 39^ 



HJ^3 VII. Observations on the Study of Mine? alqgy. By Ro- 



fl ^ nERT Bakeavell, Esq. - -. • - -' . *• 43 



-.•"^M ■ VIII, On an old Method of marking Dates on Manusciipt 



^'fM Books. By Gavin Inglis, Esq* • ^ - - 46' 



^M IX. Experiments for a new Theory of Vision. By Jo 



Jif^M SEPH RUADE, M.D.- . ,- ' * . ' .^^ - . 48 



f^ X. Observations on the Means of. preserving Provisions 

 ,^C^ and Goods. By Joseph MacSweehy, M.D. '- - 58 1 



■1^^^ , ■■ ■ . . 



XI. On Dr. CAPoTw*.!Gin'i Pcdo-motive Machine. By 

 Mr. Henry Meikle. . • - . .' . 



XI r. Observations on thb Measurement of an Arc of the 

 Meridum. By T. Firminger^ LL.D. « - 



XIII. 'Notices respecting Nfew Books. 



■ XIV. Proceedings of Learned Societies. -■ , 



XV. Intelligence and Mi&cellaacQus Articles: — Pyrolig- 

 neous Acid. — Oxy(>enated Water. — :Mr. Smith's Works on 

 I'plsil Shells.— LitLia.-r- Alloys of Platinum. — Dreadful 

 ^^^^ Explosion vA a Coal Mine.— ^Blasting of Rocks. — Velocity of 

 '■''ll Sound. — French Chronometer. — Geometrical Rpcreation. 

 — ^Partridges. — Meteor.- — New Comet — Death of Professor 

 Playfdir.— Pitents. — Meteorological Tables. . 69 — 80 , 



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^W 



59 



If 



-^^ *** Commnnicatioris for this Work, addressed to the Editor, 

 Pickett-Place, Templs Bar, will meet with every attention. 



KICHARO A};0 ART li UK. TAYLOR, PRINTERS, SHOt LAtiX, LONAOH. 



