EXPLANATION OF FIGURES. 



Fig. 1. 



Diagram showing the catches of plaice of the Firth of Forth school, 

 on left, inshore (from " Goldseeker " experiments), on the right, oSshore 

 (from the trawling statistics). 



Fig. 2. 



Diagram indicating the catches of plaice ( "Goldseeker " experiments) 

 at the Firth of Forth stations indicated, Station 6 being the northern one, 

 and Station 7 the southern one of the group. 



Fig. 3. 



Plaice. — Diagrams illustrating results of trawling experiments, the 

 lower one in Northumberland, the upper one in St. Andrews Bay in 1889. 



In each case the stations are viewed fOtm north to south in successive 

 steps. 



Fig. 4. 



Dabs. — A similar series of diagrams to the previous one, indicating 

 the results of trawling experiments, viewed from south to north, in North- 

 umberland, St. Andrews Bay, and the Firth of Forth. 



Fig. 5. 



Diagrams illustrating the catches of dabs, on left, plaice, on right, at 

 four of the trawling stations of Northumberland, as indicated. 



The different lines indicate — dotted line June, dark dotted 



line ■■■■■ July, thin line — ■ August, and dark line — ^— September. 



Fig. 6. 



Diagram illustrating the catches by inshore fishermen in Northum- 

 berland, from October, 1903, to September, 1904. 

 {a) of white fish. 

 {b) plaice. 



Fig. 7. 



An attempt to indicate the conditions during the Ice Age. 



A line is drawn showing the probable extent of the ice barrier, which 

 extended between Greenland and Scotland, its continuation to the west of 

 Ireland, and the limits of the ice covered region of the land. 



