LIST OF ILLUSTRATIONS 



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„ 32' 



33- 

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 27- 

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41. 



42. 



43' 

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45- 

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47- 

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49- 

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 53' 

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57 

 58, 



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 64 







Salmon 

 Trout 



Development of Trout {F, 

 Ova of Trout 

 Alevin 

 Fry . 



Yearling Trout 

 Char 



Grayling . 

 Smelt 

 Eel. 



Common Carp 

 Crucian Carp 

 Barbel 

 Gudgeon , 

 Tench 

 Roach 

 Dace 

 Chub 

 Minnow . 



RUDD 



White Bream 



Common Bream 



Bleak 



Stone Loach 



Spined Loach 



Pike . 



Burbot 



Three- Spined Stickleback 



Ten- Spined Stickleback 



Perch 



Ruffe 



Bass . 



River Bullhead 



Flounder . 



'gs- 33 



1036) 



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lOI 



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 no 

 III 



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IX 



