RECOVERY FROM ANAER0BI0SI8 



233 



the length of the period of deprivation of oxygen. This 

 is shown in Table 25 which consists of reports on insects, 

 the group most thoroughly investigated. (For protozoa 

 similar observations are recorded in Pantin's work 

 (1930; cf. Fig. 6). 



Kalmus (1942), has recently published an interesting 

 study of the dependency of the recovery time on the length 

 of the period of asphyxiation in Drosophila. He found 

 that the average time was linearly related to the asphyx- 

 iation time. 



Kalmus further observed that the time required by 

 Drosophila suhobscura for the resumption of movement 



4 5 ' 



Recovery time in hours 



Fig. 6. Resumption of locomotion by marine amoebae of tlie Umax 

 type during recovery from anaerobiosis. A, after a 6% -hour period of 

 anaerobiosis (the amoebae were not entirely paralyzed at the end of 

 this period). B, after a 4%-hour period of anaerobiosis (the amoebae 

 were entirely paralyzed). C, after a 25-hour period of anaerobiosis (the 

 amoebae were entirely paralyzed). D, level of average pre-anaerobic 

 velocity. (According to Pantin, 1930; with slight modifications.) 



