It consists of a frame of inch board, about 18 in. square, with a wire-cloth bottom of eight meshes to the inch, and is coated with paraffine varnish, which renders it proof against the growth of fungus. It fits neatly into the ordinary hatching trough, and is fastened half an inch from the bottom. It possesses the additional advantage of being a convenient vessel for transporting eggs. Little has been done toward stocking the Connecticut with salmon, in consequence of a litigation with the Holyoke water-power company involving the right of the state to compel that corporation to build a fishway around its dam.

This suit, however, having been decided by the supreme court of the United States in favor of the commonwealth, a fishway was opened in the autumn of 1873, and measures will be taken in Vermont and New Hampshire to stock the head waters of that stream with salmon. Black bass have been introduced into various lakes and ponds in Maine, New Hampshire, and Connecticut, whitefish into Winni-peseogee and Sunape lakes, and several inland lakes of Wisconsin, Michigan, and New York, and smelt into Massabesic lake, New Hampshire. The New York commissioners have distributed large numbers of black bass, pike-perch, Oswego bass, yellow perch, white bass, bullheads, etc, for the purpose of stocking the small lakes, rivers, and ponds of the state. These fish are taken from the Erie canal at Rochester, ascending from Lake Erie to that point, where unless removed they perish upon the drawing off of the water at the close of navigation. As early as the year 1848 Dr. W. C. Daniell of Savannah placed shad in a tributary of the Alabama river, which, with some subsequent additions, have spread until several streams emptying into the gulf of Mexico have been stocked with them.

They are found in the Escambia and its tributaries on the east, and on the west in the Mississippi as far up as the tributaries of the Red and Arkansas. In 1871 Seth Green transported 10,000 young shad from the Hudson, and placed them in the Sacramento river in California. Young shad have been placed by the New York commissioners in several inland lakes of that state, and in Lakes Champlain and Ontario; and the United States commissioner, aided by a congressional appropriation, has introduced them in great numbers into various rivers on the Atlantic coast from the Penobscot, Me., to the Neuse, N. C.; into the Alleghany, the Kanawha, the Wabash, and into the Mississippi at St. Paul; into a tributary of Salt Lake, into the Sacramento, and into Lakes Erie and Michigan, and other waters. Great interest is attached to these attempts to naturalize the shad in waters not affording access to the sea. A like experiment has been initiated with the salmon, which has been introduced by Prof. Baird into the Grand river, Mich., and the Menomonee, Wis., tributaries of Lake Michigan. Efforts have also been made to stock the Delaware river with salmon.

In 1872 an establishment was erected by the United States commissioner on the Sacramento for the purpose of procuring and distributing the eggs of the salmon of that river, which is a distinct species from the eastern salmon, and which it is believed will flourish in rivers further south. The ova procured that year were hatched at the establishment of Dr. Slack in New Jersey, and the young fish were placed in the Susquehanna. In 1873 more than 1,000,000 eggs were secured, which have mostly been divided between the New York state hatching house and that of Dr. Slack for incubation. The landlocked salmon of Maine (salmoSebago) was introduced into the waters of Connecticut in 1870, and the commissioners of Maine and the United States are now making a joint effort to increase and distribute the species.-See De la fecondation artificiele des aeufs des poissons, by Dr. Haxo (Epinal, 1853); Instructions sur la pisciculture, by Prof. Coste (Paris, 1856); Artificial Propagation of Fish," by G. P. Marsh (Burlington, Vt., 1857); Multiplication artificielle des poissons, by J. P. Koltz (Brussels, 1858);Fish Hatching," by F. T. Buckland (London, 1865);Fish Culture," by Francis Francis (London, 1865);Harvest of the Sea," by J. G. Bertram (London, 1865 and 1869; New York, 1866);The Sea and its Living Wonders," by Dr. G. Hartwig (London, 1866); "Artificial Fish Breeding," by W. H. Fry (New York, 1866); La ooutique de la mar-chande de poissons, by Martial Deherrypon (Paris, 1867);American Fish Culture," by Thaddeus Norris (Philadelphia, 1868); Trout Culture," by Seth Green (Caledonia, N. Y., 1870);An Essay on Fish Culture," by John H. Klippart (Columbus, O., 1873);Domesticated Trout," by Livingston Stone (Boston, 1873); also the annual reports of the commissioners of fisheries of the United States and of the different states, the annual reports of Samuel Wilmot to the Canadian government, and the proceedings of the American fish culturists' association, of the German fishery association, and of the societe d'acclimatation.