ABSORBING POWER AND FLUORESCENCE OF RESORUFIN. 



31 



It appears, therefore, that the absorption of resorufin is in accordance 

 with Lambert's law. Deviations from this law, if present, are at least too 

 small to be detected by the experimental methods used. 



Me 



Vx 



y& 3 /\6 



Concentration 

 Fig. 27. 



Curves showing effect of change in concentration upon coefficient of absorption 1 of 



wave-lengths marked on curves. 



Fig. 28. 

 Average coefficients of absorption 1 for different concentrations taken from Table 4. 



See footnote on page 30. 



