^Estimated or colculated from available data. 

 ^Initial concentrotion. 

 •^Finol concentration. 

 Decrease in log of molar concentration of oxidized 



cytochrome c per minute for 1: 150 tissue dilution. 

 ^Decrease in log o( motor 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 substrate converted/kilo protein/hour (Fo 

 axoplasm, protein = total protein; for sheath, 

 protein of non-collagenous component). 



'A log [ferricytochrome cl/mq. protein/min> 



JA log [CyFe**l/min. 



'^Activity/mg. N when standard activity = 

 A log (CyFe**) final tissue dilution 



^ctivity/mg. protein 

 Alog [cytochrome c 



At (min.) 



T150~ 



when activi 



^mfi moles cytochrome c reduced (mg. N)^ min. 



"mM moles DPNH oxidized (mg. N) ^ min. _^ 



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



^Moles cytochrome c reduced/mg. tissue/5 min. at 

 10°C. (extinction coefficient of reduced cyto- 

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



^0. D. of clear supernatant when meosured at 520 mM- 



'A 0. D./mg. protein/min. 



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



'Additional respirotory dato on invertebrote tissues 



present in original paper and not included in 



Section 2. 



