186 
BULLETIN OP THE BUREAU OP FISHERIES 
REFERENCES 
Nightingale, H. W. 
1927. Trade waste investigations. A preliminary report on the physical, chemical, and bio- 
logical conditions of sea water in the vicinity of Shelton which will have a bearing 
upon the probable effect of sulphite pulp waste on adjacent oyster-growing areas. 
Special report of the Washington Director of Health, January 27, 1927. Thirty- 
sixth and Thirty-seventh Annual Reports of Washington Department of Fisheries 
and Game, Division of Fisheries, pp. 51-61. Olympia. 
