DREDGING AND HYDROGRAPHIC RECORDS. 

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



51 



Temperature. 



F. 

 60.18 



60.88 



61.88 

 61.78 

 62.08 

 62.08 

 62.18 

 62.18 



60.18 

 60.18 



F. 

 59.83 



60.68 



61.78 

 61.83 

 61.83 

 62.03 

 62.23 

 62.13 



59.53 

 58.83 



59.88 

 57.78 

 57.98 

 58.48 

 67.08 

 56.78 

 55.68 



56 53.88 



58.28 

 57.53 

 57.48 

 57.68 

 56.48 

 56.13 

 56.13 



49.66 



Salinity. 



Surf. 



31.44 



31.51 



31.36 

 30.89 

 31.18 

 31.00 

 30.94 

 30.87 



28.25 

 28.02 



28.68 



31.53 

 31.12 

 32.08 

 32.29 

 33.06 



33.81 



53.21 



Botm. 



31.61 



31.51 



31.36 

 31.05 

 30.91 

 31.21 

 31.05 

 31.09 



29.50 

 30.11 



30.06 

 28.58 

 31.66 

 31.66 

 32.18 

 31.99 

 32.53 



34.14 



Apparatus. 



Tnr. cse.; 4' 

 inter., iJ12, 



f0;Ek.bot., 

 r. m. 



do 



..do. 



do. 



do. 



....do. 



....do. 



....do. 



Tnr. cse. ;4' 

 inter., Jtl2, 

 J{20;Ek.bot.; 

 Pr ni. 



....do 



....do 



....do 



....do 



....do 



....do 



....do 



12'Ag.;19"dr.; 

 Ek.bot.Tnr. 

 cse. ;4' inter.; 



#12, m. 



12' Ag.; 19" dr. 



12'Ag.;19"dr.; 

 Ek.bot.;Tnr. 

 cse., 4' inter.; 

 #12, #20. 



4' inter.; #12, 



Trial. 



Depth. 



surf, 

 an d 

 botm. 



..do.... 



.do.... 

 .do.... 

 .do.... 

 .do.... 

 .do.... 

 .do.... 



surf, 

 and 

 botm. 



..do... 



..do.. 

 ..do.. 

 ..do.. 

 ..do.. 

 ..do.. 

 ..do.. 



surf, 

 and 

 botm. 



botm... 



botm. 

 and 

 surf. 



surf... 



Dura- 

 tion. 



Min. 

 10 



10 



11 



lOi 

 lOi 



11 



4§ 



10 

 9 

 10 

 10 

 10 

 10 

 10 



Drift. 



Against 

 tide. 



.do. 



...do. 

 ...do. 

 ...do. 

 ...do. 

 ...do. 

 ...do. 



Against 

 tide. 



...do 



...do 



...do 



...do 



...do 



...do 



...do 



26 266^° 



34i 



2664° 



269i° 



Against 

 tide. 



jW. 



Remarks. 



Flood, 1.46 knots per 

 hr. In sta. of this 

 date ship went 

 with tide owing to 

 fogey weather. 



Flood, 1.92 knots per 

 hr. 



Flood, 1.95 knots per 

 hr. 



Flood, 2.16 knots per 

 hr. 



Flood, 1.46 knots per 

 hr. 



Flood, 1.39 knots per 

 hr. 



Flood, 1.44 knots per 

 hr. 



Flood, 1.59 knots per 

 hr. 



Preliminary reading. 

 Slack, 0.15 knot per 

 hr. 



Flood, 0.68 knot per 

 hr. 



Flood, 1.48 knots per 

 hr. 



Flood, 1.46 knots per 

 hr. 



Flood, 1.18 knots per 

 hr. 



Flood, 1.36 knots per 

 hr. 



Flood, 1.39 knots per 

 hr. 



Flood, 1.25 knots per 

 hr. 



Ebb. On fishing 



grounds. Cable out 



120 fms. Inter. 



temp., 52.21; inter. 



sal., 34.17. 

 Ebb. On fishing 



grounds. Cable out 



130 fms. 

 Flood. On fishing 



grounds. Inter. 



temp., 51.76; inter. 



sal., 34.08. 



