FISH 



RIVERS AND STREAMS: 



A TREATISE 



ON THE 



PRODUCTION AND MANAGEMENT OF FISH 

 IN FRESH WATERS, 



BY 



ARTIFICIAL SPAWNING, BREEDING 

 AND REARING: 



SHOWING ALSO 



THE CAUSE OF THE DEPLETION OF ALL RIVERS 

 AND STREAMS. 



BY GOTTLIEB BOCCIUS. 



LONDON : 

 JOHN VAN VOORST, PATERNOSTER ROW. 



1848. 



