TABLE OF CONTENTS. 



NUMBER LXL— JANUARY. 



Page 

 Rev. B. Powell's Experiments relative to tlie Interferences of 



Light 1 



M. Berzelius on Vanadium 7 



Mr. H. J. Brooke's Remarks on a Paper on Isomorphism, by 



Prof. Whewell, of Cambridge, inserted in vol. x. p. 161 .... 21 

 Dr.W. Henry's further Experiments on the Disinfecting Powers 



of increased Temperatures 22 



M. O. A. Rosenberger on the Elements of Halley's Comet at 



its last Appearance 32 



Prof. Encke on the Calculation of the Orbits of Double Stars 



{continued) 41 



New Books : — Mr. De la Beche's Geological Manual 46 



An Account of Inventions and Improvements in Surgical 



Instruments, made by J. Weiss, 62 Strand 53 



" Mr. H. Ronald's Pyrus Malus Brentfordiensis 54 



Proceedings of the Geological Society 55 



Linnasan Society 58 



. Royal Astronomical Society 60 



Zoological Society 62 



Cambridge Philosophical Society 69 



Royal Geological Society of Cornwall .... 71 



Errors in the Nautical Almanac for this year 1832, and in the 



Planetary Distances for 1832 and 1833 73 



M. Bussy on Magnesium 74 



MM. Wohler and Liebig on Subchromate of Lead 75 



Protoxide of Copper — Titanate of Iron 76 



New Scientific Books , 77 



New Patents — Meteorological Observations 78 



Meteorological Observations made by Mr. Thompson at the 



Garden of the Horticultural Society at Chiswick, near 



London ; by Mr. Giddy at Penzance, Dr. Burney at Gosport, 



and Mr. Veall at Boston 80 



NUMBER LXII.— FEBRUARY. 



Mr. J. White's Notice of Mr. Pritchard's gradual Progress in 

 the Application of Iron to the Erection of Bridges {contimied) 81 



Notice of the Arrival of Twenty-six of the Summer Birds of 

 Passage in the Neighbourhood of Carlisle, together with 

 some of the scarcer Species that have been met with in tlie 

 same Vicinity during the Year 1831 ; with Observations, &c. 82 

 a 2 Letter 



