Vol. 48. Philosophical Magazine* September ISIG, 



Contents of Number 221. 



XXXV. Letter to the Right Hon. the Countess of Gos- 

 FORD, on the Speculations of Theorists, ^particularly of the 

 Neptunians. By William T'ichardson, D.D. 



XXXVI. On the Excitement of Voltaic PLites ; in reply 



P^g'-^. 



165 



IS 



Agnes JriiETsoH - , - . - 



XXXVIII. On Sir H. Davy's Snf--lamp for Mines. By 

 John George Children, Y.^-q. F.R.S. 



XXXIX. On certain Experiments with Sir H. Davy's 

 Ssfe-lamp, reported to have been made at the Gas Esta- 

 blishment in Dorset-street. By William Knight, Esq. 

 the Ms-nager of that Establishment ■ . - - - 196 



XL. Sngj:restions arising from Inspections of Wire-gauze k^s:^* 



Lanjps, in ihsir working State, in Mines;. By Sir H.Davy - 197 '■^:;' 

 ' XLI. On the Cosrnegony of Moses ; in reply lo Dr. 



'Tv^ Prich 'VRO ■ Bv F E™''' "-' s. - " " - 



i ii, XLII. On Magnesio- Sulphate of Soda. By Mr. J. 

 v^»^ Heales - ' - - - - - - 



<^M XLIII. On Vulgar Fractioivs - - - 



?%^ XLIV. Observations on the Hypothesis of some modern 

 jtJ-s Wr't<^i"s> tii^t America has been peopled by a distinct Race 

 if|^- of Men and Animals ; widi sora? Proofs arising from the 

 ^^^i^ Natural History and Appearances of the new Continent in 

 '%VC fii^'onr of the Mosaic Accour.t of the Deluge. JBy Hugh 

 M^'^Wii.LiAi>:&ON, M.D.of New-York .' - , - 

 W|| XLV. On a ne^' Species of Calculus. By Mr. J. T. 

 ff'f^J^ Cooper - - - - - . " - 



f& 'r^ XIA'^I. Extract from n' Memoir read to the Institute on 

 tlvj ] '3\h of May 1 S16, ou the Possibility of making the Mol- 

 luscs of Fresh Water live in Salt Water, and vice versa. By 

 IF. S. Beudant . . - - - - 22Si 



XLVII. On the Precipitation of the Oxide of Gold by Pot- 

 ash. By M. Figuieh. Extracted by M.Gay-Lussac -227 

 XLVlil. Notices respecting New Books- - - 229j 



XLIX. Intelligence and Miscellaneous Artiales. — New 

 ,?f^| Voyage round the World. — French Colonies. — Expedition 

 f^^ to Africa. — improvement of Rape Oil, — Steam Engines in 

 JfM Cornwall.— The late Eartliquake in Scotland.— L'ectures — 

 §i^ M Patents for New Inventions. — Meteorology. - 230-240 1 



^^y *** Commanicatio-ns fortius V/o:k, addressed to the Editor, 

 ^iy' Pic!: ctt' Place, Temple Bar, will meet with every attention. 



RICHARD AND AETHUR TAYLOR, F&INTB&S, SHOE tAKR^ttOW^P*** 



