TABLE OF CONTENTS. 



NUMBER XIX.— JANUARY. 



Page 



Rev. W. D. Conybeare's Notice of Mr. Walker's Communica- 

 tion on the Direction of the Mountain Chains of Europe and 



Asia. . . . , 1 



Mr. R. Potter, Jun., on the Power of Glass of Antimony to re- 

 flect Light 6 



Rev.W. Whewell's Remarks on a recent Statement by Berze- 



lius respecting the Use of Chemical Formulae 9 



Rev. W. Ritchie on the Reduction of Mr. Faraday's Disco- 

 veries in Magneto-Electric Induction to a general Law. ... 11 



. on the continued Rotation of a closed Voltaic 



Circuit, by another closed Circuit 13 



Mr. G. H. Fielding on the Membrana versicolor of the Eyes of 



Animals, in reply to Sir D. Brewster 14 



Mr. J. D. Forbes's" Experimental Researches regarding certain 

 Vibrations which take place between Metallic Masses having 



different Temperatures 15 



Rev. T. J. Hussey's Catalogue of Comets {continued) 29 



Dr. C. G. B. Daubeny on die Comparative Strength of Salt 



Springs at different Depths 31 



Rev. J. Challis on the Brachystochronous Course of a Ship . . 33 

 Mr. W. G. Horner on the Properties of the Dcedaleum, a new 



Instrument of Optical Illusion 36 



Mr. J. Prideaux's Remarks on Mr. Phillips's Observations on 



the Use of Chemical Symbols 41 



Mrs. M. Griffiths's Observations on the Vision of the Retina. . 43 

 New Books: — Abstracts of the Papers printed in the Philoso- 

 phical Transactions of the Royal Society of London, from 



1800 to 1830 inclusive 47 



Proceedings of the Geological Society 48 



Linnaean Society 52 



Zoological Society 54 



Philosophical Society of Cambridge 66 



University of London 69 



Royal Society of Edinburgh 70 



Composition of Oil of Bitter Almonds (concluded) 70 



Scheele's Artificial Malic Acid — Oxalhydric Acid 74 



Tellurium, its Preparation, Atomic Weight, &c 75 



New Substance in Opium — Discovery of Fossil Fish, the Tooth 

 of a Saurian Reptile, and other Remains, in the Limestone of 

 Burdie-hoiise, near Edinburgh: with Remarks hy the Hev. 



W. D. Conybeare 77 



Scientific Books 79 



a 2 



