REFRIGEKATION OF FISH 



547 



and upon emerging from the bath the cake slides into the bath and 

 the pan is removed at the same time. 



GLAZING TANKS 



The glazing trough usually consists of a shallow wooden tank, 6 or 

 8 feet long, with curved runners that pass under the water and out 

 lengthwise of the tank. (See Fig. 10, p. 533.) In some tanks the 



Fig. 15. — Improved type of glazing tank for salmon and hali- 

 but. The tank is of concrete. Courtesy, Seattle Port 

 Commission 



bottom is curved. The tank may be stationary or on casters. When 

 no special room is provided for glazing, a movable glazing tank is 

 placed near the sharp freezer doors. 



On the Pacific coast, where halibut and salmon are frozen in 

 large quantities, the glazing tank in common use is a stationary 

 wooden or concrete tank provided with a movable wooden slat plat- 



