Radclijfe. — Fishery Products Laboratories 5 



in this field and of making plans for future work, to all of which 

 reference will be made. 



In the absence of laboratories of this character for guidance, it 

 has been necessary to devote much thoughtful study and care 

 to the plans for the building and the selection of the various units 

 of equipment. The Bureau's objective has been to provide 

 equipment in which all possible factors could be controlled and 

 recorded, that the trustworthiness of the final results of an investi- 

 gation might be reasonably assured. In addition sight has not 

 been lost of the value of the laboratory as a demonstration plant 

 wherein visiting members of the fishing trade may view apparatus 

 and processes of approved type in operation, and wherein the 

 Bureau's employees may acquaint themselves with methods, 

 processes and products of the fisheries to enable them the more 

 intelligently to deal with problems in the field. A brief reference 

 to the building and equipment which has been provided may be 

 of interest in this connection. 



The building, which was completed in June, 1919, and is nearly 

 equipped, is 45 x 80 feet, two floors and an attic, of hollow tile 

 and concrete construction. On the first floor there is a large 

 mechanical laboratory, a refrigeration plant, chemical laboratory, 

 incubation room, smokehouse and stock room. On the second 

 floor there is a small laboratory, exhibit room, experimental 

 kitchen and offices. The mechanical laboratory is equipped 

 with a steam boiler, vacuum and compressed air pumps, hydraulic 

 press, filter press, grinder, steam-jacketed kettle, lathe, etc. 

 For canning purposes there is a complete plant for sealing tin 

 cans by a double seamer, a retort with controlling and recording 

 instruments, complete equipment for sealing and processing glass 

 containers by a vacuum process and another for tin containers also 

 by a vacuum process. For freezing fish in brine, a small experi- 

 mental plant has been imported from Denmark and has been 

 used to demonstrate this method to interested persons in the 

 fisheries. This plant freezes fish by the Ottesen method and was 

 the first of its kind to be brought in and used in this country. 

 In addition to serving to demonstrate a new method to the trade, 

 it will afford the Bureau's technologists means of investigating 

 the various brine freezing methods and comparing them with the 

 usual methods of freezing in air. For experiments in drying fishery 



