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BULLETIN OF THE BUREAU OF FISHERIES 
In order to show the results obtained with all six specimens used in experiments 
Nos. 2 and 3, Table 1 is appended. The difference between the length of time that 
OCTOBER NOVEMBER 
Figure 26. — Records of the controls in experiments Nos. 2 and 3 (figs. 25 and 27). The records 
are not as high as expected, though much higher than those of the experimental specimens. 
This was due, apparently, to the relative gradual fall in temperature from about 13° C. at the 
beginning to about 5° C. at the end of the series 
Figure 27. — Records of specimens in experiment No. 3 (0.83 part per 1,000). Compare with 
the controls (fig. 26) 
the oysters in the three groups remain open is striking, expecially when the tendency 
for the treated specimens to remain closed continuously for several days is noted. 
Table 1 . — Experiments 2 and 3 and controls. Length of time specimens remained open as influenced 
by the presence of sulphite liquor. Liquor was started on October 23 
