Vol.53. PliilosoplHcal Magazine. Jcjne 18 



Page 401 1 



411 

 412 



419 



425 



Contents of Nomber 254. 



I^XVI. On X)r. Murray's Statement respecting the Ori- 

 giu of the Doctrine of Definite Proportions, and the Arrange- 

 ment of the Elementary Principles of Chemical Compounds 

 By WiiLLiAM HiGGiKs, Esq. . - - 



LXVIL Description of a new Species of North American 

 Mdvlen {Miislelavulpina). By C. S. R.afinf.sq,ue. 



LXVIII. On a neTr Method of treating Ff^ctorials and 

 Figurate Numbers. By Mr. Peter Nicholson. 



LXIX. Observations on Larch t together with two Expe- 

 riments of the Strength and Resilience of the Timber, and 

 ' Size of largest Tree rut in 1817, or growing in 1819. By 

 ' John, DuKB OF Atholl; - ■ - 



LXX. On a new Methodof applying the Power of Man 

 to the moving of Machinery, with at least six times the Ef- 

 fect that can be produced by mere muscular Exertion. By 

 [the Rev. Dr. Edmund Cartwright. - , - 



LXXI. On the different "Rates" of JPen>iington*s 

 Astronomical Clock, at the Island of Balta in Zetland, and 

 at Woolwich Common, Kent -, v/ith comparative Tables, 

 and Remarks upon the Results of various other Pendulum 

 Esperiir.ents. ByOi-iNTHusGREGORY,LL.D. ofthe Royal 

 I Military Academy ; Honorary Member of the Literary and 

 Philosophical, and the Antiquarian, Societies of New- York t 

 of the Literary and Philosophical, and the Antiquarian, So- 

 cieties of Ne^vcastle-uriou'Tyne; Corresponding Associifte 

 of the Academy of Arts, Science-**and Belles Lettres, at 

 I Dijon, &c. , - ■■ - - 



LXXn.On the Aggry Beads of Africa. ByT. Edward 

 EowDicH, Esq. - - - - . 



LXXI 1 1. Notices respecting New Books, - 

 LXX IV. Proceedings of Learned Societies. / - 

 LXXV. Intelligence and Miscelbncous Articles : — 

 JNew Liquid. — ^Wayelite, 'a Subphosi5hate of Aluniina. 

 — Sulphur in Acid^— Vestium, a new i4ei:al — Crystallized 

 DiamoriU in Ireland. — The Necronite (a supposed new 

 Mineral). — Tungstein and Tellurium found in America. — 

 Acousticlr.strument for ascertaining the State of the -Lungs. 

 I — Antiquities in Ar:ibia Pelrsa. — Lunar Atmosphere". — . 

 Moving Mountain. — Mungo Park. — Storm Compass.— Pa- 

 tents. — Meteorology, Index, Sec, - , - - 462—476 



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i28 



445' 

 449 I 

 460 



*^* Communications for this Work, addressed to the Editor, ^\ 

 Picketi-Place, Tenjple Bar, will meet with every atteation. 



'rICHARD AKD ARTHVR. TA-XtOa, PRINTERS, SHOE LANB/ lOSpOSi 



