308 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



71' 



44' 



43< 



42' 



41 



40"  





CAPE. 

 A 



PORTLAND^ 









44' 



43' 



42' 



4 I 



40 



71' 



70' 



69' 



68' 



67' 



66' 



FictRE 12. — Areas where comparable records of water temperatures were taken in March and May 1953 (dots) and in 

 March of the earlier years of 1913, 1920, and 1921 (crosses). 



