REPORT ON OCEANOGRAPHY 101 



water of almost constant temperature which rises no higher than 53°- 

 54 °F. in the summer and does not fall below 48° in the winter. This 

 water is now being used in conjunction with the lake water. Two other 

 laboratories for freshwater research are equipped with tanks and 

 troughs. One is for the study of fish diseases, with its own sewage 

 system; the other, with thermo-regulated mixers in the water supply, 

 is for constant-temperature work. Facilities are also provided for field 

 work in the freshwater area, with a carryall-truck and several small 

 boats which may be used with an outboard motor for both class work 

 and research in the nearby lakes. 



Research in marine biology is carried out on our 50-foot converted 

 Navy motor sailer provided with a double-drum trawling winch and 

 a smaller accessory drum for handling lighter cable from which hydro- 

 graphic instruments can be operated. In addition, outriggers have been 

 installed for towing small plankton nets. The boat is used for operat- 

 ing various types of fishing gear in the Puget Sound area, and can also 

 be used for dredges, etc. The study of live specimens in the laboratory 

 is made possible by a self-contained saltwater aquarium which bor- 

 rowed several features from similarly situated aquaria in Chicago and 

 San Francisco. Salt water, passing from one of two storage tanks, moves 

 through a series of Pyrex glass coils where it is cooled by refrigerated 

 brine circulating around the coils. Water from the second tank is 

 warmed while passing through a thermostatically controlled heating 

 coil. The warm and cold water enter the aquarium room through sep- 

 arate pipes and provide a variety of temperatures when mixed in vary- 

 ing proportions. From the aquaria the water passes to the basement 

 where it is filtered and pumped back to the reservoirs on the roof, com- 

 pleting the circuit. The saltwater system is operating successfully and 

 is available for student instruction and research. With the completion 

 of the system one experiment indicative of the type of research made 

 possible is that of the acclimatization of salmon to salt water. This 

 experiment is still in progress, and a number of silver and chinook 

 salmon were raised for some months last season before they were sud- 

 denly struck with a bacterial disease introduced into the system from 

 an unknown source. The disease has apparently been eliminated and 

 another group of salmon are now being acclimated. This may pro- 

 vide an interesting research tool in the study of effects of various factors 

 in the environment on the subsequent development of the salmon. 



Facilities for instruction and research in technology include a well- 

 equipped chemistry laboratory and a bacteriology laboratory, a small 

 pilot plant containing all the basic machinery for canning, curing, and 



