Vol. 57. Philosophical Magazine. May 1821. 



328 



34- 1 



Contents of ISf umber 277* 



LIII, On the atmospherical Refraction. By Mr. J. Ivory. 321 



LIV. Some Account of a Method which may be applied 

 to the same Purposes as Sir Isaac Newton's Method of 

 Fluxions. By Mr. Thomas Tredgold. - - 325 



LV. Strictures on a Publication entitled "Clark's Gas 

 Blowpipe." By Robert Hare, M.D. Professor of Che- 

 mistry in the Medical Department of the University of Penn- 

 sylvania, &c. ...--. 



LVI. Some Account of the Dugong. By Sir Thomas 

 Stampord Raffles, Governor of Sumatra ; communicated 

 in a Letter to Sir Everard Home, Bart. V.F.R.S. 



LVII. A Seri of Queries addressed to Dr. Burney of 

 Gosport, regarding Shooting Stars and Meteors, with 

 some Suggestions on the same Subject to the Astronomical 

 Society of London, for making these Phaenomena available 

 in settling the Longitudes of Places, and towards extending 

 our Knowledge of the very numerous planetary and satellitic • 

 Bodies, composing the Solar System. By Mr.J.pAREY Sen. 346 ' 



LVIII. On the Cure of Scrofula by means of Vital Air, 

 and the Use of the Juice of Sorrel. By Robert John 

 Thornton, M.D. Member of the Royal London College of 

 Physicians, and Lecturer on Botany at Guy's Hospital. 



LIX. True apparent Right Ascension of Dr. Maske- 

 lyne's 36 Stars for every Day in the Year 1821. By the 

 Rev. J. GaooBY. 



LX. On the American Sea Serpent. 



LXI. Third Report of the Commissioners appointed by 

 HisMajesty to consider the Subject of Weights and Measures. 359 | 



LXII. A new Method of teaching Latin to Youth; by 

 Robert John Thornton, MD. - - - - 361 



LXIII. Claim to the Invention of a new Method of de- 

 termining the Latitude. By Mr. Edward Riddle. - 364' 



LXIV. Experiments on the Strength and Stiffness and 



Specific Gravity of various Specimens of Wood. E.xtractea 



1 from, the First Report from the Select Committee appointed 



to consider of the Means of improving and maintaining the 



Foreign Trade of the Country. 



LXV. Some Account of the principal modern Catalogues 

 of fixed Stars ; with Remarks connected with the Subject. 

 By A Correspondent. . - - 



LXVI. Reply to Mr, Ivory's Remarks on the Series of 

 the Article Cohesion. In a Letter to the Editor. - - 376 



LXVII. Notices respecting New Books. ... 379 



LX VIII. Proceedings of Learned Societies. • - 393. 



LXIX. Intelligence and Miscellaneous Articles : — 

 Music. — Astionomical Notices. — Barometrical Observa- 

 tions. — Meteorological Tables, &c. - - - 394— 4(X)\ 



351 



353 

 356 



366 



370 



KICHARO AND ifRTHli& TAYLOB, PKINT£KS, SHOE LANS, LONDON. 



