CHAPTER VI. 



IN addition to the Report of M. Milne-Edwards, 

 we present to the reader the Report of M. Costa, 

 a gentleman of rare attainments, and filling a 

 Professorship in the College of France with dis- 

 tinguished ability. These two documents ought 

 to go far in removing any doubts in the minds 

 of those who are prone to scepticism on the 

 subject of fish-culture. 



REPORT 



On the means of Stocking all the Streams of France with Fish, 

 addressed to the Minister of the Interior of Agriculture and 

 Commerce. 



PARIS, JULY 12, 185'2. 



SIR : In your letter of the 30th of June, you 

 asked me to visit the fish-breeding establishment 

 at Mulhouse, of Messrs. Berthol and Detzem, en- 

 gineers of the Rhone and Rhine canal, and to 

 suggest to' you measures so that their works can 

 be made to stock all the streams of France. Ac- 

 cordingly I now put you in possession of the 

 result of this mission. 



The discovery of artificial fish-breeding was 

 long hidden in the laboratories of science, where 



