850 
BULLETIN OF THE BUREAU OF FISHERIES 
So far as our records go, slope water of this high salinity reaches its widest 
expansion within the gulf in April (p. 737). The indraft through the channel, however, 
seems to slacken during that month, for the bottom layer of 34 per mille water was 
Fig. 171. — Depth of the density surface (isopycnobath) for 1.027; July and August, 1914. Corrected for compression 
much thinner in May 47 of 1915 than in March or April of 1920 (p. 754), and the area 
occupied by it was much less extensive. In that year (probably a representative 
one) but little water can have moved inward through the Eastern Channel during 
u In May, 1915, the bottom water of the western arm of the basin was more saline than 34 per mille; that of the eastern less so 
