Report of the Commissioner for the year ending June 30, 1899 . eason of 1895 was 21, but not nearly all of these are known tohave made good catches, especially of sockeye, and several werepractically failures. Twenty-nine additional trap-net sites which hadbeen tried in previous years, but had been abandoned for one cause oranother, were definitely located the same year by the Fish Commissionparty, but the actual number of such sites must have been muchgreater. New traps were added in several places in 1896, 1897, and1898, but their exact positions have not been learned. The total num-ber in 1
Report of the Commissioner for the year ending June 30, 1899 . eason of 1895 was 21, but not nearly all of these are known tohave made good catches, especially of sockeye, and several werepractically failures. Twenty-nine additional trap-net sites which hadbeen tried in previous years, but had been abandoned for one cause oranother, were definitely located the same year by the Fish Commissionparty, but the actual number of such sites must have been muchgreater. New traps were added in several places in 1896, 1897, and1898, but their exact positions have not been learned. The total num-ber in 1898, however, was much greater than in 1895. The futuregrowth of the fishery can not be predicted. Despite its rapid develop-ment it has met with many reverses, and much capital has been a certain proportion of the nets have realized the expectations oftheir builders, and the location of successful sites has, in most cases,been the result of actual trial, generally following one or more failures, Report U. S F. C. 1899. (To face page 296 ) Plate 11. FISHERIES OF WASHINGTON AND BRITISH COLUMBIA. 297 as little reliance can be placed upon the existing knowledge of themovements of the fish. How the growth of the industry may affectoperations on the Fraser River and the abundance of the sockeye isalso an important matter which remains to be determined. CONSTRUCTION OF THE TRAPS. The salmon trap nets are constructed on the same general principle*as the pound nets of the Great Lakes, consisting of a crib, tunnel,heart, and leader; but they are usually made of a larger size, andexperience has dictated some important modifications. The nettingis of cotton twine, and is supported by wooden stakes driven into thebottom. Wire netting of galvanized iron, in place of the cotton, forthe hearts and leaders, has been suggested as probably more durable,and experiments regarding it have recently been carried on at PointRoberts. Floating traps, such as are successfully employed for salmo
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