VI CONTENTS. 



PAGE 



Illustrations to the Rev. W. J. Wingate's paper on a Ramble up 

 Burnhope : 



The Horse Pool, Wearhead ... ... ... ... to face p. 98 



Sandstone Rocks below Springwells ... ... ... to face p. 98 



The Three-yard Limestone in the bed of the Wear ... to face p. 106 



Faulted Beds represented by means of cards ... ... to face p. 106 



Sections of Strata in Weardale Mines ... ... ... ... iii 



Illustration to Mr. Meek's paper on the Migrations and Growth of 

 Plaice : 

 Abnormally coloured Plaice ... ... ... ... to face p. 154 



Illustrations to Mr. David Richardson's paper on an old Iron 

 Smelting Furnace at Wheel Birks : 



Plan of old Iron Furnace at Wheel Birks ... 284 



Sketch showing probable design of the old Iron Furnace at 



Wheel Birks 285 



Illustrations to Mr. Coggin Brown's paper on some Lacustrine 

 Deposits in the Drift near Ferryhill : 



Plan of Cuttings in Drift 288 



Sketch-map of the District ... ... ... ... ... 289 



Section on south side of south cutting (sketch) ... ... ... 290 



Photograph of same ... ... ... ... ... to face p. 290 



Section across the District ... ... ... ... ... ... 291 



Illustration to Prof. Brady's paper on the Crustacea of a salt-water 

 Pond at Amble : 

 Sketch-map of the Quarry Pond, Amble, and its surroundings 331 



Illustrations to the Rev. Arthur Watts's paper on the Borings at 

 Derwenthaugh : 

 Plan of the Borings at Derwenthaugh ... ... ... ... 422 



Sketch-map of Lower Dervvent Valley ... ... ... ... 422 



Section at the Derwenthaugh Borings ... ... ... ... 426 



Illustrations to Dr. Woolacott's paper on the Landslip at Claxheugh : 

 Section of Claxheugh Rock (reprinted from Transactions, pre- 

 ceding series, vol. 14, p. 212) ... ... ... ... 435 



Photograph of Claxheugh before the occurrence of the 



landshp ... ... ... ... ... to follow p. 436 



Photograph of Claxheugh after the landslip, September, 



1905 ... ... ... ... ... ... to follow p. 436 



