CONTENTS. ix 



PAGE. 



XXV. — A Catalogue of the Birds hitherto met with in the Counties of 

 Northumberland and Durham, by P. J. Selby, Esq., F. R. S., 

 F. L. S., M. W. S., ^c. ^c 244 



XXVI. — Notice ofCypselus alpinus, and Mergus cucullatus, hy P. J. 



Selby, Esq 291 



XXVII. — A Desciiption of a Fossil Tree, discovered in the Quarry 

 ofCragleith, near Edinburgh, in the Month of November, by 

 Henry Witham, ^sy 294 



XXVIII. — On the Geology of a Part of Northumberland and Cum- 



berla7id, by Mr. Nicholas Wood, Killingworth, 302 



Lists of Presents and Purchases. 



Index. 



List of the Plates. 



