1914] Sumner, et al.: Physical Conditions in San Francisco Bay 189 
DETERMINATIONS OF THE BoTtoM SAMPLES—(Continued) 
F Vegetabl 
Size of particles Gross weight CaCO, Raniains’ 
Station in millimeters Absolute Per cent Absolute Per cent Absolute 
D.5794 5-10 mm. 0.78 0.39 0.34 43:06) eee 
2—- 5mm. 0.97 0.48 0.50 SuTO.) eens 
Under 2mm 199.65 §S. 77.322 1.84 0.92 
2 5 99.65 9M. 21.815 8 a 
Total 201.40 100.00 2.68 WBS bey aeeecect 
D.5796 5-10 mm. 1.31 0.35 TEP 91.92 0.07 
2- 5mm. 28.57 7.58 25.42 89.08 0.19 
5) §S. 90.452 <p 
Under 2mm. 346.90 UM. 1.625 5.87 MOSS cere 
Total 376.78 100.00 62.50 G58) eee 
D.5800 Over 10mm. 3.87 1.50 0.64 16.49 
5-10 mm. 17.14 6.67 1.09 6.37 
2—- 5mm. 40.99 15.94 IeG2 4.20 
Under 2mm. 195.10 75.89 6.98 BHspy ee) oe 
Total 257.10 100.00 10.88 qi040"  (.a25 
D.5801 Over 10mm. 1371.08 58.59 19.05 1.39 
5-10 mm. 48.43 2.07 4.33 8.95 
2—- 5mm. 203.50 8.69 32.60 16.01 
Under 2mm. 717.30 30.65 24.79 3t46) Ge peers 
Total 2340.31 100.00 80.77 Bey ee 
D.5808* Over 10mm. 342.12 51.06 17.92 5.24 
5-10 mm. 167.09 24.93 1.80 1.08 
2- 5mm. 78.99 11.79 2.36 2.99 
Under 2mm. 81.91 12.22 1.45 2 LH (neers 
Total 670.11 100.00 23.53 sole) vseceeces 
D.5809* Over 10mm. 2100.02 78.00 40.72 W940 eee 
5-10 mm. 94.68 3.52 2.54 2.68 0.01 
2—- 5mm. 250.41 9.30 3.88 155 0.03 
Under 2mm. 247.30 9.18 5.43 DOs as 
Total 2692.41 100.00 52.57 N95 Sy eae 
D.5816—A Over 10mm. 2.69 8.29 2.69 NO. OYOO) eres=es 
5-10 mm. 1.84 5.67 1.63 88.75 
2—- 5mm. 1.85 5.69 ish jit See eee 
5 Gyan. Mise Geese?) AG 
Under 2mm. 26.05 UM. 30.555 ait AVG ec 
Total 32.43 100.00 6.74 2OKI9s 0 eee 
D.5827-A Over 10mm. 2.26 D359 ay aes = eee ee 
5-10 mm. 9.22 GIO BIe Wises) "Qeccesk) hy Ate 
2—- 5mm. 20.07 PANY) | OHSY0) PNO 
Under 2mm. 64.69 G7e21e eB SEB eee 
Total 96.24 100.00 2.68 OF ON me se cen 
* The nature of the bottom at these two stations is not fairly indicated by the tables, which include 
the finer ingredients only. A large part of the material brought in consisted of large stones, one of these 
reaching a length of about 35 cm. 
