^Estimated or colculoted from avoilable data. 



''Initial concentration. 



■^Finol concentration. 



■^Decreoso in log of molar concontrotton of oxidized 



cytochrome c per minute for 1:150 tissue dilution. 

 "Decrease in log of molor concentration of reduced 



cytochrome c per minute for 1:100 tissue dilution. 



'A log [cytochrome c]/mg. wet wt./min. 



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



"Moles substrate converted/kilo protein/hour (Fo 

 axoplasm, protein = total protein; for sheath, 

 protein of non-collogenous component). 



'A log [ferricytochrome c]/mg. protein/min. 



)A log^CyFe**]/min. 



'*Activtty/mg. N 



Alo 



when standard activity - 

 ') final tissue di lulior 



'Ac 



"TBO" 



Ity/mg. , _ _ 



I [cytochrome c] 



At (min.) 



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



"m/i moles DPNH oxidized (mg. N) ' min. _J 



o my moles cytochrome coxidiied (mg.N) min. 



^Moles cytochrome c reduced/mg. ti ssue/5 min. a 

 10°C. (extinction coefficient of reduced cyto- 

 chrome c taken as 2.8 x 10"' cm.'/mol.)- 



''0. D. of clear supernotant when meosured ot 520 ^y^^. 



'A O, 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. 



