Vol. 56. 



'iMB:-. 



m:n 



Plr.losophical Mafrazinc. 



GoiS'TEKTS OF .NuMBER 2/1. 





^ov. 1820 



T^-€& XLIX. A J_.'"ttcr fron Dr. JJuTTON ; x\iih Conimunica- 

 '»-^f lions fniin the Marquis De La PLACF. - - - f-fJl 



j^>^M L. On the Dry-Ro^ in Tirr^h-* . By T. H. Paslf:v, Esq. 5i'6 

 l!*''^ LT. On some Combinati'iis rf Pl.itinnm. By Edmund 

 "•t ' -| Davy, Etq. Professor of Cliemistry, and Secie-r;\ry to the 

 f»-'':v'it)i\ Ccrk Institution. Commmilcatcd hy F. Babingtok, M.D. 

 '^iipF.R.S. - - . _ . _ - 



if^-- ''^ LII. On the recent Alterations 's'.iid to be made i>y some 

 viv^^^;.? Timers of Mvisical IiTstruinents, in the Places of tlie Wolves, 

 .)^i'--\ or largely tempered Concords, tm comrn<n ]2-si;rintred or 

 ^^••^vj Douzeave Eeyed-Insiruments. With some, Qiieiies thereon,. 



J^3l^ to Musicians. Ey Mr, John Farev .Senior. - - S4I 



/ri~i f!i LIII. On t!:ie Methtids of cuitinsr Rock CrystiiV for ^^- 

 k^JS '^'"o^i"^^'rs- By Wilt.iamHydb VVoi;LAST0N,M.D. F.R.S. .",43 

 '■•^^^^^ LIV. On M;-. Bonnycastle's Dissertation on ihe In- 

 A,?T"'?j fiacnce of Mnsses qf Iron en the Mjriners' Coinpass publish 



■^''7 ^"^ '•■' °'^"' •''■'^^^- VoluTr,e 



Jf-:^^^ ' LV. Copy of the Report to the .Secretary of St.rte ^or the 

 (■^j^i ''5 liome Department, from the Naiional Vuccine Establish- 

 V^^V>' n-env; dared 18th May 1820. . - - 



LVI. On the Lunar Period. jBy Mr. THdM.\s Ykates. 



LVil. On the " Conncissance des Tcms pour I'An 

 1S20." - - . . - . 



r^- t,& LVllI. An entirely New Method of extractbg the Cube 



K:'.t^^ Root i'l Numbers. By Mr. Feteii Nicholson. 

 '-^•■-';v;\\ LIX. Description of Mr. Malam's Cas-Meter, 

 V^|';i LX. Thoughts on the Probability, Expediency and Uci- 

 Wi'-'J 'ity of discovering a Passage by the North Pole - 



m'l ^^ LXI. Notices vespecting New Books 



Vir^^'l I..Xn. Proceedings of Lenrned Societies 

 -^'J,!^ LXllI. Intelligence and Miscellaneous Articles: — 



t'f-'-i Return of the Discovery Ships. — The Overhmd Noithcni 

 f^4^ Expedition. — Soundings, — French Voyage of Discovery.— 

 J«f,t*S Lilght-Houset-.— Island near Java rent asunder.— Lan- 

 &'^V;^ guagos. — Ancient Manuscripts. — Vesuvius and Pompeii. — 

 •5ff?*\ berzelius. — Veiatrine Alkali. -^Cevadic Acid. — Galvanic 

 l^jvjV'J Magnetism. — St;iti.slics,&:c. — Remedy for Mildew on Wheat, 

 •T,:-' !':'.J — OrKan'c Remains. — The Patent Water Engine — P.itents. 







- 3^6 



':d 





-Meteoric Stones..— Barometric Observalious.- 



(^' ^"^ logical Tables. 





-Meteoro- 



383—400 



■*i'"^'^ ''"'** Cf^ni^"TiIcations for tins Work, received by the Editor, 

 ^f.^m PicLeit-Place, Temple Bar, will meet with every attention. 



lUCl!ARD.Af;U AK-TUUR; TAYLOK, PRINTERS, SHO£ LANK^ LONDON. 



i<i ''i-J-?^<¥i':^/i'ii^-^-'tci 



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