WWh" 



V)L.6l. PhilosQphical Magazine. Mar<:h1823. 

 Contents of Number 299- 



XXXIV. On the Orbit of the Planet Vesta. By A Correspon- 

 ofiNT Page 161 



P^ XXXV. On a Property of Polygons. By Mr. T. Drummond. . . 162 

 , XXXVI. On the Causes of the Variation of the Magnetic Pole. 



iiy Mr. Richard Webster. , 1S5 



^X^XVir. Some Account of M. Bichat's Theory of Life 168 



XXXVIII, On Chronometers. With Remarks on the Trial just 

 terminated at Greenwich, under the Direction of the Right Honour- 

 able the Lords Commissioners of the Admiralty. By Mr. G. F. Hut- 

 xox 177 



XXXIX. Memoir on the different Species, Races, and Varieties of 

 the Genus Brassica (Cabbage), and ofthe Genera 'allied to it, which 

 ^re cultivated in Europe. By M. Augustin Pyramus De Can- 



-' ootLE, Professor of Botany in the Academy of Geneva, &c. &c 181 



XL. True apparent Right Ascension of Dr. Maskelyne's 36 

 Stars for every Day in the Year 1823, at the Time of passing the Me- 

 ridian of Greenwich 197 



XLI. On the Structure of the Earth, and the Changes which are 

 continually passing upon it by the constant Operation of the Laws of 

 Nature. Read before the Glasgow Philosophical Society on the 

 29th of July 1822. By Mr. James Boaz 200 



XLII. On the Measurement of Timber. By Mr. Wiseman. . . - • 204 



On the same Subject, By Mr, Newton 206 



. XLIII. Some Experiments connected with the Relations of Calo- 

 ric to Magnetism. By John Murray, Esq. F.L.S. M.W.S. &c. . . 207 



XLIV. Remarks on Fermentation. By John Murray, Esq. 

 F.L.S. M.W.S.&C 208 



XLV. Determination of the Altitude of Great Whernside : with 

 Remarks on terrestrial Refraction. By A Correspondent 209 



XLVII. Supplementary Table for computing the Precession and 

 Natation of the Fixed Stars. By F. Baily, Esq. F.R.S. and L.S,. . 217 



XLVIII. Strictures on Dr. Young's and La Place's Theories of 

 the Tides. In a Letter to Dr. Young. By Captain Forman, R.N. 219 



XLIX, Notices respecting New Books : Analysis of Periodical 



^ Works on Zoology and Botany 228-283 



''^. Proceedings of Learned Societies 12>'i-1Vi 



LL Intelligence and Miscellaneous Articles :— Earthquake at Gre- 

 nada.— Asiatic Society of London. — Steam Navigation to India. 

 — JFruit Trees,— Obituary— Lieut. Col. Wilford.— Mr. Sowerby's 

 Itluseum.— List of New Patents,— Meteorological Table 237-240 



*^*- Communications for this Work, received by the Editors, 

 38, Shoe-Lane, will meet with every attention. 



RICHARD TAYtOR, PRINTER, SHOE-I.AN£, LONDON. 



