1918] 



Packard: Quantitative Analysis of Molluscan Fauna 

 ~ ? g' I? O % I % t' B & 3 f- I ^ 



329 



Golden Gate 



J I L 



Point San Mat«o o. -^ Q> to 



J I L 



■4 «J 



Fig. F — Distribution of bay temperatures. Upper curve, July 22-31; lower 

 curve, October 7-12. (Adapted from Sumuer et al.) 



