^Estimated or colculoted from availoblo dato. 

 "Initial concentration. 

 '^Firial concentration. 

 Decroose 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 substrate c 

 axoplasm, protein 

 prote 



'A log ' 

 JA log 



rted/kilo protein/hour (Fo 

 totol protein; for sheath, 

 of non-collagenous component), 

 [ferricytochrome cl/mq. protein/min. 

 lCyFe**)/min. 



Activity/mg. N when standard activity = 

 A log (CyFe*"*") final tissue dilution 



r^ " m ■ 



' Activity/mg. protein when activity = 

 Alog [cytochrome cj 



At (min.) 



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



"mM moles DPNH oxidized (mg. N)-'minr_^ 



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



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

 10°C. (extinction coefficient of reduced cyto- 

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



''O. D. of clear supernatant when measured ot 520 m/ 



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



*Moles DPN reduced/g.wel wt./hr. 



'Additional respiratory data on invertebrote tissues 



present in original paper and not included in 



Section 2. 



