the gas production of a tissue approximately 10 percent of 

 the total float weight (for example), then it equals 0. 7 jul/mg 

 gas gland tissue /hr. The average obtained by Hahn and 

 Copeland was 0.6. Furthermore, the determination of CO 

 production reported here was performed at 7°C, whereas 

 the above authors made their determinations at 22 °C. If 

 the Q 10 of the enzymatic reactions involved in gas secretion 

 is above 1, as is almost certainly the case, then the single 

 observed value in this report will become relatively greater. 

 For example, at a O of 2 for the process of secretion, my 

 figure of 0. 7 /il/mg gas gland/hr when adjusted to 22 °C 

 becomes approximately 2. 5 /ul/mg gas gland/hr. 



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