CONTENTS. 



PAGE 



Art. I, Indications of Glacial Action in North Wales. By 

 Sir Walter C. Trevelyan. In a Letter ad- 

 dressed to Professor Jameson, . . .193 



II. On the Mammalia of the Fish River Bush, South 

 Africa, with notices of their Habits. By Mr 

 William Black, Staff Assistant-Surgeon. Com- 

 municated by the Author, . . . .195 



III. On the discovery of some Fossil Reptilian Remains 



and a Land-Shell in the interior of an erect Fossil- 

 Tree in the Coal Measures of Nova Scotia ; with 

 remarks on the origin of Coal-fields, and the time 

 required for their formation. By Sir C. Lyell, 

 F.R.S., . . . . . . . 215 



IV. Some Observations on Fish, in relation to Diet. By 



John Davy, M.D., F.R.S., Lond. & Edin., In- 

 spector-General of Army Hospitals, &c. Com- 

 municated by the Author, . . . .225 



1. Nutritive power of Fish, .... 225 



2. Peculiar Qualities of Fish as Articles of Diet, 228 



V. On the Identity of Structure of Plants and Animals. 

 By Thomas H. Huxley, Esq., F.R.S. Read be- 

 fore the Royal Institution, . . . .234 



