rol " HBr .1^1 



^BRARV 

 LIST OF THE COMET 



TO VOLUME FIVE, 



WITH REFERENCES TO THE SEVERAL ARTICLES CONTRIBUTED 



BY EACH. 



Batly, William H., F.L.S. page 



On a New Species of Pentremite, from Carboniferous Lime- 

 stone, Co. Dublin ; and Eemarks upon Codaster trilobatus 

 (M'Coy), from Carboniferous Limestone, Co. Kilkenny 

 (Plate I.), . . 31 



Ball, V., M.A., F.E.S. 



Zinc and Zinc Ores, their Mode of Occurrence, Metallurgy, 

 and History in India ; with a Glossary of Oriental and 

 other Titles used for Zinc, its Ores and Alloys, . . 321 



On the Existing Eecords as to the Discovery of a Diamond 

 in Ireland in the year 1816, 332 



Babkett, W. F., M.E.I.A. 



On a New Form of Calorimeter, .' . ... . .13 



On the Double Quadriform Lighthouse Lamp, . . .74 



On the Physical Properties of Manganese Steel, . . . 360 



Dlxon, G. Y., M.A. 



Notes on Two Irish Specimens of Edwardsia timida (Quatre- 

 fages) (Plate VI.), 100 



Dixon, S. M. 



On Twisted Copper Wire, . , , , , , , 646 



