1918] Packard: Quantitative Analysis of Molluscan Fauna 323 
§ N 'Y N 
Corquinez Strait 
Golden Gate 
Pont SanMateo GS AeWTe STRLREREAS s3e8#8 
Fig. B—Mean annual salinity at each of the hydrographic stations of the 
regular series. (After Sumner e? al.) 
