The only way to keep the true colour of roach that are to be used as bait for jack fishing is to preserve them alive. Make a wooden box 2 ft. (3in. long by 1 ft. 4in. wide by about 9in. deep. This will hold from twenty to thirty fish. The joints of the box should be put together with thick white lead. The water should be changed about once a fortnight, or oftener if the full number of fish is kept. The tank should be looked over daily and dead fish or ice removed at once. Dead fish may be preserved as follows. Wipe them dry and drop them into a wide-mouthed bottle containing glycerine or spirit of wine. Cork up tightly and cover the cork with melted wax.