EXPLANATION OF PLATES. 

 Plate I. . . 20 miles E. of Isle of May, Experiment IX., 6th December 1912. 



Plate II. . . Same Experiment. Showing the migratory movements in the 1st 

 Quarter, December 1912 to February 1913. 



Plate III, . . Same Experiment. Showing the migratory movements in the 2n(l 

 Quarter, March t > May. 



Plate IV. . . Same Experiment. Showing the migratory movements in the 3rd 

 Quarter, June to August. 



Plate V. . . Same Experiment. Showing the migratory movements in the 4th 

 Quarter, September to November. 



Plate VI. . . Firth of Forth. Midway between Elie and Fidra, Experiment 

 VIIL, 24th April 1912. 



Plate VII. . Aberdeen Bank. Experiment L, 10th June 1910. 



Plate VIIL . Moray Firth. S.E. of Smith Bank, 20th September 1912. 



Plate IX. . . 19 miles E.S.K. of Fair Isle, 15th September 1910. 



Plate X, . . Showing the Distribution of the "Spawning" Fish of all 

 Experiments. 



