DREDGING AND HYDROGRAPHIC RECORDS. 

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



79 



Tempera tiire. 



F. 



59. 10 59. 30 

 62. 90 62. 05 



61. 00 58. 70 



61. 80|59. 55 



62. 10 59. 15 

 60. 30 58. 70 



63 



F. 



F. 

 64.60 



60.30 

 59.10 



64.10 



69.20 



69.10 



69.20 

 67.20 



62.20 



*54.2 



*54.5 



59.30 

 59.90 



62.60 



62.05 



63.95 



68.95 

 63.90 



60.85 



68.75 

 69.15 

 69.10 



Salinity. 



Surf. 



24.36 



30.41 

 29.02 



28.26 

 26.73 



Botm. 



29.16 

 28.35 



28.42 



27.92 



27.85 



27.83 

 28.75 



28.91 



27.61 

 27.34 

 27.77 



24.42 



30.37 

 29.23 



Apparatus. 



Ek. bot . 



Ek. bot.; Pr. 

 m. 



....do 



28.77 do. 



29.74 



30.03 

 30.26 



30.08 



31.49 



.do. 



-do. 

 .do. 



.do. 

 .do. 



27.92 



Ek. hot.; Tnr. 



cse.;4'inter.; 



#12, #20; Pr. 



m. 

 ....do 



27.81 do. 



53.2 12.81 



27.83 

 28.78 



29.74 



27.56 

 27.34 

 27.79 



.do. 

 .do. 



.do. 



Ek. bot. 



do.. 



do.. 



4' inter.; #12, 

 #20. 



do 



do 



do 



do 



.53.5 



11.78 



29.04 Ek.bot.; Tnr. 

 cse.;4'inter.; 



fl2, #20; NZ; 

 r.m. 

 18.35 do... 



Trial. 



Depth. 



botm. 



botm. 

 ..do.. 



.do. 



.do. 



.do. 

 .do. 



.do. 

 .do. 



surf, 

 and 

 botm. 



...do.... 



.do. 



.do. 

 .do. 



.do. 



botm. 

 ..do.. 

 ...do.. 



surf 



.do. 

 .do. 

 .do., 

 .do. 



.do. 



...do.... 



Dura- 

 tion. 



Min. 



Drift. 



Diroetioii. 



Afi. 



Remarks. 



20 

 20 

 20 

 20 



8§ 



9i 



F lood . Launch 

 used. 



Ebb, 1.74 knots per 

 hr. 



Ebb, 1.13 knots per 

 hr. 



Ebb, 1.68 knots per 

 hr. 



Ebb, 0.65 knot per 

 hr. 



Flood, 0.37 knot per 



hr. 

 Flood, 1.05 knots per 



hr. Bow midway 



in Golden Gate. 

 Flood, 1.56 knots per 



hr. Ship headed 



N.42° W. 

 Flood, 1.97 knots per 



hr. Headed toward 



Mt. Diablo. 



Against Ebb, 0.95 knot per 



tide. hr. 



.do I Flood, 0.22 knot per 



I hr. Net towed 3 



min. 

 .do Flood, 0.27 knot per 



: hr. 



.do Flood, 1.05 knots per 



I hr. 



.do Flood, 1.21 knots per 



hr. 



Against 

 tide. 



Flood, 1.35 knots per 

 hr. 



.\ gainst I 

 tide. 



...do 



...do j 



...do 1 



...do I 



Flood, 

 used. 

 Do. 



Do. 



Laun ch 



Anchored . 



...do 



Ebbtide. 1.83 knots 

 per hr. NZ Surf., 

 #98.'i23: L, #71738; 

 R,#9.S260. 



Ebbtide. 2.43 knots 

 per hr. 



61700°— 21 13 



