4719 miles navigable rivers £23,025 3105 miles of canals 5,845 310 miles of estuaries of rivers 46,140 930 miles of rivers and canals belonging to individual proprietors 2,700 114,889 miles of rivers and streams not navigable. 493,750 acres of lakes and ponds. 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 which the fresh waters supply one-half, giving 23,080 Rivers and canals belonging to private individuals 2,680 114,889 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 [Illustration: PISCICULTURAL ESTABLISHMENT AT BUISSE.] 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 completed by a grating which prevents the mixing of the fish contained 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 metres. This pond contains fish of the second year. A sluice or water-gate (J), placed in the deepest part of the pond, affords the means of turning the water and the fish contained therein into the pond No. 3. Courses of rough stones and weeds line the banks of the pond, and form places of shelter for the fish, besides encouraging the growth of such shell-fish as shrimps, lobsters, etc.