(2) 



Fig. ig. — Diagram CDiitrasiing 



ullines of tail of a Tweed " Hull Trout '" 

 ot a I.och Lomond Sea-trout. 



(i) Tail of Tweed " bull trout '" (;! lb.). 

 (2) Tail of Loch Lomond sea-trout (3! lb.). 



and 



Sec page 63. 



