^Estimated or calculated from available data, 



"Initial concentration. 



*^Final concentration. 



''Decrease in log of molar concentrotion of oxidized 



cytochrome c per minute for 1:150 tissue dilution. 

 ^Decrease in log of molar concentration of reduced 



cytochrome c per minute for 1:100 tissue dilution. 



^Alog [cytochrome c]/mg. wet wt./min. 



8-A log [ferricytochrome c]/mg. protein/min. 



^Moles substrote converted/kilo protein/hour (Fo 

 Qxoplasm, protein = total protein; for sheath, 

 protein of non-collogenous component). 



'A log [ferricytochrome cl/mg. protein/min. 



JA log [CyF,**]/min. 



Activity/mg. N when standard activity = 

 A log (CyFe**) final tissue dilution 



ST "" TOO ■ 



'Activity/mg. protein when activity = 

 Alog [cytochrome c] 



At (min.) 



"^mM moles cytochrome c reduced (mg. N)^ min. 



"mM moles DPNH oxidi zed (mg. N) ' min._| 



° mM moles cytochrome c oxidized (mg. N) min. 



PMoles cytochrome c reduced/mg. tissue/5 min. at 

 lO^C. (extinction coefficient of reduced cyto- 

 chrome c taken as 2.8 x 10"' cm.Vmol.). 



''O. D. of clear supernatant when measured at 520 mAi. 



'AO. D./mg. protein/min. 



^Moles DPN reduced/g. wet wt./hr. 



'Additional respiratory data on invertebrate tissues 



present in original paper and not included in 



Section 2. 



