Anglers of our time have proved that Tench croak like frogs; Herrings cry like mice; Gurnards grunt like hogs; and some say the Gurnard makes a noise like a cuckoo, from which he takes one of his country names. The Maigre, a large sea-fish, when swimming in shoals, utters a grunting or piercing noise, that may be heard from a depth of twenty fathoms. M. Dufossé asserts that facts prove that nature has not refused to all fishes the power of expressing their instinctive sensations by sounds, but has not conferred on them the unity of mechanism in the formation of sonorous vibrations as in other classes of vertebrated animals. Some fishes, he says, are able to emit musical tones, engendered by a mechanism in which the muscular vibration is the principal motive power; others possess the faculty of making blowing sounds, like those of certain reptiles; and others can produce the creaking noise resembling that of many insects. These phenomena M. Dufossé has named "Fish-noise." The River Plate swarms with fish, and is the _habitat_ of one possessed of a very sonorous voice, like that found in the River Borneo--the account of which is quoted by Dr. Buist from the Journal of the Samarang; and there is similar testimony of a loud piscatory chorus being heard on board H.M.S. Eagle, anchored, in 1845-6, about three miles from Monte Video, during the night. That fishes hear has been doubted, although John Hunter was of this opinion, and has been followed by many observers. When standing beside a person angling, how often is the request made not to make a noise, as that would _alarm_ the fish. On the other hand, the Chinese drive the fish up to that part of the river where their nets are ready to capture them by loud yells and shouts, and the sound of gongs; but old Æsop writes of a fisherman who caught no fish because he alarmed them by playing on his flute while fishing. In Germany the Shad is taken by means of nets, to which bows of wood, hung with a number of little bells, are attached in such a manner as to chime in harmony when the nets are moved. The Shad, when once attracted by the sound, will not attempt to escape while the bells continue to ring. Ælian says the Shad is allured by castanets. Macdiarmid, who declares that fishes hear as well as see, relates that an old Codfish, the patriarch of the celebrated fish-pond at Logan, "answered to his name; and not only drew near, but turned up his snout most beseechingly when he heard the monosyllable 'Tom;' and that he evidently could distinguish the voice of the fisherman who superintended the pond, and fed the fish, from that of any other fisherman." In the "Kaleidoscope" mention is made of three Trout in a pond near the powder-mills at Faversham, who were so tame as to come at the call of the person accustomed to feed them. Izaak Walton tells of a Carp coming to a certain part of a pond to be fed "at the ringing of a bell, or the beating of a drum;" and Sir John Hawkins