CO NT EN TS 

 OF THE SIXTY-SECOND VOLUME. 



j4n Essay on the Question, JV/ietlier there be i^^o Electrical 

 Fluids according to Du Faye, or one according to Franklin. 

 Bj/ Professor Hare P''ge ^ 



Description of an Electrical Plate Machine, the Plate mounted 

 horizontally, and so as to show both negative and jjosttive 

 Electricity. By the same ^ ^ 



Description of an improved Blowpipe by Alcohol; and of the 

 Means of rendering the Flame of Alcohol competent J or the 

 Purpose of Illumination. By the same 9 



On the Trisection of a Circular Arc. By Mr. P. Newton 10 



On a Method of observing Solar Eclipses by means of the Alti- 

 tude and Azimuth Instrument ^ • • 15 



Due apparent Eight Asce7ision of Dr. Maskeeyne's 36 Stars 

 for every Day in the Year 1823 . 16, 1 10, 190, 276, 346 



On Metallic Titanium. By W.H.WoLLASTON,iVf.Z).F.P.7^.i'. 



18 



Report ofT. Telford, Esq. on the Effects which will be pro- 

 duced on the Thames by the Rebuilding of London Bridge 2 1 



On the Project of taking down London Bridge .... 28 



An Account of the Observations and Experiments on the Tem- 

 jicrature of Mines, which have recently been made in Corn- 

 wall, and the North of England 38, 94- 



Cutalogue of Zodiacal Stars for the Epoch of January 1, 1800; 

 from the Works of Herschel, Piazzi, Bode, ^r. ; with 

 Notes. By a Member of the Astronomical Society . i-1 



On M. Laplace's Communication to the Rnyal Academy, f-' Sur 

 r Attraction des Spheres, et sur la Repulsion ties Fluiiks 

 elastiques." 7i// J. Herapath, £5<7 61, 136 



Reflections on Vokanos. By M. Gay-Lussac • • • «1 



Analysis of '-'- Observations and Experiments made at I'csmnps 

 in\H2l and 1822 by T. Monticelli and N. Covellj." 

 y;(/M. Menard DE i,A Groye ....... i-O 



On the ^'Essaijs (fJ^AS Rey." By Mr. J. Murray . . 93 



On Electro-Magnetism. By Mr. J. Taw m . . • 107 



Account of the Accumulation of the Exuvi<c <f Bears in a Cave 

 ,d Kiil'dnch in Franconia. 'By Prrfrssor Ulckland 112 



\'ol. 62. No. 308. Dec. 1823. a 



