DREDGING AND HYDROGRAPHIC RECORDS. 

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



49 



Temperature. 



Salinity. 



Surf. 



Botm. 



Apparatus. 



Trial. 



Depth. 



Dura- 

 tion. 



Drift. 



Direction. 



llemarks. 



57 



64 



66 



r. 



62.68 



F. 

 61.88 



56.38 



55.78 

 55.78 



56.48 

 57.88 



57.88 



58.68 

 58.88 

 60.18 

 69.5 60.18 



59 61.38 



61.18 

 61.08 



61.08 

 60.88 

 60.38 



67 159.68 

 67 i59 



56.03 



55.38 

 54.93 



55.83 

 56.68 



56.98 



57.08 

 57.78 

 59.53 

 59.83 



60.98 



61.03 

 60.83 



60.83 

 60.83 

 59.83 

 59.23 

 58.53 



31.44 



31.36 



33.22 

 33.22 



32.67 

 32.80 



32.83 



32.28 



31.90 

 30.24 

 30. 11 



14.84 



14.03 

 15.85 



20.56 

 24.77 

 28.26 

 29.18 

 29.43 



31.36 



32.92 



33.22 

 33.27 



33.18 

 32.60 



32.60 



32.67 

 32.27 

 30.43 



Tnr. cse.; 4' 

 inter., #12, 

 #20; Ek.bot.; 

 Pr. m. 



Tnr. cse.; 4' 

 inter^ #12, 

 #20; Ek.bot.; 

 Pr. m. 



....do 



surf, 

 and 

 botm. 



surf, 

 and 

 botm. 



Afin. 

 12 



Against 

 tide. 



Mi. 



do. 



.do 



.do 



do. 



....do. 

 ....do. 

 ....do. 

 ....do. 



..do.... 

 ..do.... 



..do.... 

 ..do.... 



..do.... 



..do.... 

 ..do.... 

 ..do.... 

 ..do.... 



20 



18i 



Hi 



12 

 11 



Against 

 tide. 



..do 



..do 



..do 



..do 



..do 



..do 



..do 



18.51 



17.08 

 19.66 



21.78 

 25.16 

 28.95 

 30.11 

 31.05 



Tnr. cse.; i' 

 inter^ #12, 

 #20; Ek.bot.; 

 Pr. m. 



do 



do 



...do. 

 ....do. 

 ....do. 

 ....do. 

 ....do. 



surf, 

 and 

 botm. 



.do. 

 .do.... 



.do... 

 .do... 

 .do... 

 .do... 

 .do... 



10 

 lOi 



10 

 12 

 10 

 10 

 9i 



Against 



tide. 

 ..do 



...do. 

 ...do. 

 ...do. 

 ...do. 

 ...do. 



Ebb, 2.30 knot.s per 

 •hr. As grit gauze 

 lining ripped, outer 

 bag was used as 4' 

 inter, townet Cl- 

 inch mesh) at this 

 station. 



Flood, 1.70 knots per 

 hr. 



Flood, 1.31 knots per 



hr. 

 Ebb, 0.225 knot per 



hr. #20 bag filled 



with sand. Towed 



5 min. under way. 

 Ebb, 0.94 knot per 



hr. Towed 5 min. 



under way. 

 Ebb, 0.99 knot per 



hr. 



Ebb, 1.31 knots per 

 hr. 



Ebb, 1.53 knots per 

 hr. 



Ebb, 0.96 knot per 

 hr. 



Ebb, 2.92 knots per 

 hr. 



Ebb, 2.63 knots per 

 hr. 



Ebb, 0.46 knot per 

 hr. 



Flood, 



hr. 

 Flood, 



hr. 



F'lood, 

 hr. 



Flood, 

 hr. 



Flood, 

 hr. 



Flood, 

 hr. 



Flood, 

 hr. 



0.50 knot per 

 1.55 knots per 



1.86 knots per 

 1.18 knots jjer 

 1.52 knot* per 

 1.13 knots per 

 0.45 knot per 



