CONTENTS. Vll 



Page 

 Mr. J. C. MouNSEY on a singular Iridescent Phaenomenon seen on Winder- 

 mere Lake, Oct. 24, 1851 41 



Dr. Nichol's Notice of Climatological Elements in the Western District of 



Scotland 42 



Rev. T. Rankin on Meteorological Phsenomena for 1854, registered at 



Huggate 42 



Rear-Admiral Sir John Ross on the Aurora Borealis 42 



Mr. R. Russell on the Meteorology of the United States and Canada 42 



Professor C. Piazzi Smyth on Naval Anemometrical Observations 45 



Mr. P. L. SiMMONDs's Notices of Rain-falls for a Series of Years at Home 

 and in Foreign Countries 45 



Dr., Taylor on Waterspouts 45 



CHEMISTRY. 



Dr. Thomas Andrews on the Polar Decomposition of Water by Common 

 and Atmospheric Electricity 46 



■ on the Allotropic Modifications of Chlorine and 



Bromine analogous to the Ozone from Oxygen 48 



Mr. Barnett on Photographic Researches 48 



Professor Bunsen and Dr. Henry E. Roscoe's Photochemical Researches, 

 with reference to the Laws of the Chemical Action of Light 48 



Mr. F. Crace Calvert on the Manufacture of Iron by Purified Coke 49 



and Mr. Richard Johnson on Alloys 50 



• on the Action of Sulphuretted Hydrogen on Salts of 



Zinc and Copper ■ 51 



Mr. D.Campbell's Description of Dr. Clark's Patent Process for Softening 

 Water, now in use at the Works of the Plumstead, Woolwich, and Charlton 

 Consumers' Puie Water Company, together with some Account of their 

 Works 54 



Chevalier De Claussen on the Preservation of the Potato Crops 64 



Mrs. Crosse on the apparent Mechanical Action accompanying Electrical 

 Transfer 55 



Extracts from a Letter from the Rev. A. S; Farrar, on the late Eruption of 

 Vesuvius 65 



Professor Daubeny on an Indirect Method of ascertaining the presence of 

 Phosphoric Acid in Rocks, where the quantity of that ingredient was too 

 minute to be determinable by direct analysis 55 



on the Action of Light on the Germination of Seeds 56 



Dr. J. B. Edwards on the Titaniferous Iron of the Mersey Shore 61 



Mr. David Forbes on the Action of Sulphurets on MetalHc Silicates at high 

 Temperatures 62 



Professor Frankland on some Organic Compounds containing Metals 62 



on a Mode of conserving the Alkaline Sulphates con- 



tained in Alums 62 



Professor E. Fr^my on the Extraction of Metals from the Ore of Platinum ... 63 



Mr. J. Galletley on a New Glucocide contained in the Petals of a Wall- 

 flower 63 



Mr. Robert Galloway on the Use of Phosphate of Potash in a Salt Meat 



Dietary , 63 



