f% • XLI. 



WWa Longitude by Lunar Observations. 



Vol. 54. Phllosophicat Magazine^ Oct. ISli 



Contents of Nubiber 258. 



Remarks on Mr. Meikle's Paper\Dn findinpj the ^^ 



By Mr. Edward .Rid- A^ 



' - - Page 241 



XLIL Ail Essay on Dreaming, including Conjectures on 



the proximate Cause of Sleep. By Andrew Cahmichael, t^: 



M.R.LA. - .- , ■ - - 252S 



XLIIL Principles of finding thfeiLongltudp. By A Cor- \^ 



RESPONDENT. - - -■ - ' -265^ 



XHV . Researcheson some important Pointsof the Theory ^, 



of Heat. By MM. Petit and DuLONG. '- - 267^5 



XLV. On Irreguiariiies observed in the Direction of the [ot 



^^^ Compass Needles of H. M. SS. Isabella and Alexander, ^- 



fin their late Voyage of Discovery, and cauftd by the Attrac- ^ 



tion of the Iron contained in tlieSliips. By Captain Edward 

 111* 13* Sabine, of the Royal Regiment of Artillery, F.R.S. &c. 



XLVI. On the Anomaly in the Variation of the Magnetic 

 ^ Needle as observed on Ship-board. By Wxlliam Scoresbv 

 ri^ Jnn. E'^q. Communicated by the Right Hon, Sir Joseph * 

 ^ ' Banks, Bart. G.C.B.T.R.S. - - - 282 



r^j., ,._ XLVfl. Further Remarks on, the Mode of taking Lunar 

 ^Jjt^ Observations. By Mr. Henry Meiklk.' 



XLVIII. Illustrations an<l Corrections of two Papers on 

 K^ the Nature and Laws of Friction, with a Refutation of the 

 Objections of Mr.MEiKLE. By Mr. Thomas TREDoetp. 

 XLIX. Some Observations on the Formation of Mists 

 in particular Situations. By Sir H. Davy, Bart. F.R.S. 

 V.P.R.L - - - -, - ; 



L. Further Evidence to prove tlie Existence of the Kraken 

 ^m '^ ^""^ Oc&ih, and tending to show that this huge Creature 

 fj^lf is a Species of Sepia or Squid. Being three scvej.-al Commu- 

 nications of Facts, made to Dr. Mitchi^l, by William 

 Lee, Esq., Captain Riley, and Captain Nevillk, in Sep- 

 tember I8I7. Communicated by Dr. Mitch'ill. 



LI. On the solid Excrement of the Boa Constrictor. By 

 EdmIind Davy, Professor of Chemistry and Secretary to 

 the Cork Institution. 



LII. Notices respecting New Books. ... 

 LI II. Proceedings of Lcarne-d Societies. 

 LIV. Intelligence and Miscellaneous Articles.— Hints 

 j|| respecting the Nautical Almanack. — Spodumene, — Fluor 

 Spar. — Primary Sandstone.— Quartz Rock. — Method of 

 rendering Glass less brittle. — Earthquakes. — Extraordinary 

 ' Visitation. — Poisonous Confectionary. — Herculaneu^ Ma- 

 inuscribts.— Grecian University,— -Patents, &c. - .Sl3— 320 



%*' Communications for this Work, addressed to th« Editor, 

 Pickett-Place, Temple Bar, will meet with every attention 



2<>0i 



2933 



296 



3011 



303 

 3061 

 312 



RIOHARD AKD ARTHUR TAYLOB, PRINTE&S, SHOS LAN*, I.9ND0N. 



