BIGELOW: EXPLORATIONS IN THE GULF OF MAINE. 



47 



One day, August 21st, throws light on the diurnal warnn'ng of the 

 cold coast water between Mt. Desert and the mouth of Penobscot 

 Bay. The hourly diagram (fig. (j) shows that there was only about 2° 



A.M. P.M. 



6 r 8 9 10 II 12 2 3 4 5 6 7 8 9 10 II 12 



64° 



63 



62 



61 



60' 



59 



58 f 



57 



56 



55* 



_^ ►.—- . ►- 1 ► < L 



:z: 



Fig. G. — Air and surface tempera tui-es, August 21, 1912. 



Fig. 7. — Air and surface temperatures, August 6, 1912. 



