DREDGING AND HYDROGKAPHIC RECORDS. 

 Francisco Bay, Calif., 1912-13, and March, 1914 — Continued. 



45 



Temperatiire. 



Salinity. 



Surf. 



"F. 

 56.63 



60 166.83 

 61.5 66.53 



62 



63 

 63.5 



64 



65.5 



65.5 

 65 



65 65. 23 

 67 65.53 



65.73 



64.03 

 63.83 



63.33 



61.73 



60.63 

 65.03 



66 

 64.5 

 64 

 64 



65.03 

 63.73 

 62.93 

 62.73 



F. 

 '56.71 



66.86 



66.76 



65.81 



63.91 

 62.71 



63.31 



61.56 



58.81 



65.71 



65.36 

 65.56 

 64.86 

 62.91 

 62.41 

 60.56 



31.79 



27.85 



27.91 



27.94 



28.33 

 28.49 



28.51 



29.10 



30.11 



Botm. 



Apparatus. 



27.87 



27.82 



27.87 



28.33 

 28.79 



28.64 



29.18 



30.83 



11.35 

 16.63 

 21.91 

 24.85 

 26.47 

 28.25 



16.11 

 16.94 

 22.05 

 25.94 

 27.01 

 29.23 



Trn. cse.; 4' 

 inter.; #12, 

 #20; Ek. bot. 



Tm. cse.; 4' 

 inter.; #12, 

 #20; Ek. bot, 



....do 



do 



....do 



....do 



do 



...do 



...do 



Trn. cse.; 4' 

 inter.; #12. 

 #20; Ek.bot. 



....do 



....do 



....do 



....do 



....do 



....do 



Trial. 



Depth. 



surf, 

 and 

 botm. 



-surf, 

 and 

 botm, 



..do.... 



...do. 



...do. 

 ...do.... 



...do. 



...do. 



...do.... 



surf, 

 and 

 botm 



..do.... 

 ..do.... 

 ..do.... 

 ...do.... 

 ..do.... 

 ..do.... 



Dura- 

 tion. 



12i 



8i 

 10 



8 



4' inter.; #12, 

 #20. 



do 



do 



do 



surf... 



...do.... 



...do. 



...do.... 



19J 



14 



10 



10 



11 



llj 



lOi 



Drift. 



Direction. 



Against 

 tide. 



Against 

 tide. 



..do 



..do 



..do 



...do 



..do 



..do 



..do 



Against 

 tide. 



...do 



...do 



...do 



...do 



...do 



...do 



Itomarks 



Mi. 



Against 

 tide. 



...do 



...do 



...do 



Flood. Cable out 11 

 fms. 



Flood. Cable out 4 

 fms. 



Flood. Cable out 4i 

 fms. 



Flood. Cable out 3i 

 fms. 



Do. 



Flood. Cable out 4 

 fms. 



Flood. Cable out 6 

 fms. 



Flood. Cable out 8 

 fms. 



Flood. Cable out 10 

 fms. 



Flood. Cable out 

 8-11 fms., towed 9 J 

 min. under way. 

 Surf. 10 min. later 

 because therm, did 

 not trip. 



Flood. Cable out 11 

 fms., towed 3 min. 

 under way. 



Flood. Cable out 4 

 fms. 



Flood. Cable out 6 

 fms. 



Flood. Cable out 5 

 fms. 



Do. 



Do. 



On piles between 

 high and low tides. 



On beach between 

 high and low tides. 



Between high and 

 low tides. 

 Do. 



Do. 

 Do. 



