92 M. DE GALBEHT'S ESTABLISHMENT. [CHAP, m. 



The money value of the fish caught in these waters may 

 be stated as follows : 



From State Returns for rivers and canals 28,880 



The estuaries yield 46,140, of wliicli the fresh 



waters supply one-half, giving 23,080 



Rivers and canals belonging to private individuals 2,680 

 1 1 4,889 miles of watercourses 148,000 



493,750 acres of lakes and ponds 400,000 



Total 602,640 



If the profits of the cultivators and expenses of the fishery 

 be added to the produce, we have 



Canals and watercourses 400,000 



Lakes and ponds 400,000 



Total production of profits and produce 800,000 



The piscicultural establishment of M. de Galbert, one of 

 the most important of the kind which exists in France, is 

 worthy of notice. It is situated at Buisse in the canton of 

 Voiron in Isere, a department on the south-east frontier of 

 France. The works, of which the accompanying engraving is 

 a plan, comprise four ponds for the reception of the fish in 

 various stages of growth. The first (1 in the plan) is about 

 100 metres long by 3 m. 50 in breadth, with a mean depth of 

 1 metre. It is almost divided into two parts, a sheet of 

 water and a stream, by a peninsula, and the division is com- 

 pleted by a grating which prevents the mixing of the fish con- 

 tained in each part, and also arrests the ascent or descent of 

 the fry. The sheet of water is supplied from sources of an 

 elevated temperature which diverge into the stream, and 

 thence into pond No. 2 at N. This basin (2) is 150 metres 

 long, with a mean breadth of 8 metres, and a depth varying 

 from 1 to 2 metres. Besides the waters from the first pond, 

 this basin is supplied from the springs, and from the mill- 

 stream which rises from a rock situated at a distance of 200 



