'E»timoted or calculated from ovoiloble doto. 

 ^Initial concentration. 

 *^Finol concentration. 

 Decrease in log of molar concentrotion of oxidized 



cytochrome c per minute for 1:150 tissue dilution. 

 'Decrease in log of molor concentrotion of reduced 



cytochrome c per minute for 1:100 tissue dilution. 



'Alog [cytochrome c)/mg.wel wt./min. 



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



"Moles substrate convarted/ki lo protein/hour (For 

 axoplosm, protein = totol protein; for sheath, 

 protein of non-collogenous component). 



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



JA Iog^CyFe**]/,nin. 



''Activity/ 

 i^ log (Cy 



g. N when standard activity = 

 Fe**) final tissue dilution 



' Activity/mg, protein 

 I [cytochrome c 



Al 



TOO 

 when activity = 



og [ 



At (min.) 



^mti moles cytochrome c reduced (mg. N) ' min. ' 

 "m|i moles DPNH oxidi zed (mg. N)~' min."' 

 °m(i moles cytochrome c oxidized (mg. N)~' min."' 

 **Moles cytochrome c reduced/mg. ttssue/5 min. at 

 lO^C. (extinction coefficient of reduced cyto- 

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



'^0. D. of clear supernatant when measured at 530 m^ 



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



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



'Additional respiratory data on invertebrate tissues 



present in originol poper ond not included in 



Section 2. 



