11 CONTENTS. 



PAGE 



Art. VII. Report on the Investigation of British Marine Zool- 

 ogy by means of the Dredge, Part I. The Infra- 

 littoral Distribution of Marine Invertebrata on 

 the Southern, Western, and Northern Coasts of 

 Great Britain. By Professor Edward Forbes, 68 



VIII. Whirlwinds produced by the Burning of Cane- * 



Brakes, ...... 72 



IX. A Chemical Examination of the Metals and Alloys 

 known to the Ancients. I. History. II. Ana- 

 lyses of Ancient Alloys. A. Coins struck prior 

 to the Christian Era. B. Analyses of Ancient 

 Arms and Cutting Instruments. C. Table of 

 Mean Composition of the Specimens analysed. D. 

 Deductions. By J. Arthur Phillips, Esq., 

 F.C.S., ... . . . 75 



I. History, ...... 75 



II. Analyses of Ancient Alloys, — 



A. Coins struck prior to the Christian Era, . 88 



B. Analyses of Ancient Arms and Cutting Instru- 

 ments, . . . . . . 91 



C. Table shewing the Mean Compositions of the 

 Specimens Analysed, .... 90 



D. Deductions, ..... 9^ 



X. Account of Observations on the Solar Eclipse of July 

 28, 1851, made at Sebastople. By Edward 

 Sang, Esq., F.R.S.S.A., Professor of Civil and 

 Mechanical Engineering, Constantinople. Com- 

 municated by the Royal Scottish Society of Arts, 103 



XI. On the Scratching of Rocks by the passage over them 

 of Sharp Detrital Matter. By Lieut.-Colonel 

 PoRTLOCK, F.R.S., President of the Geological 

 Society of Dublin, . . . . . Ill 



XII. On the Remains of Druidical Temples near Penzance. 



By Richard Edmonds, Jun., Esq., . . 123 



XIII. On the Constitution of the Atmosphere. By M. Lewy. 



Read to the French Academy of Sciences, . 126 



