306 



BIOLOGICAL EFFECTS OF RADIATION 



serum globulin differ (56), owing probably to the method of preparing the 

 proteins and their purity. The values for the absorption maximum and 

 minimum given by different authors are listed in Table 2. 



1.4 



1.2 



1.0 



c 

 .9f 

 o 

 '<*■ 



'^- 

 Oi 

 O 



O 



C 



o 



-t- 

 o 



c 



0.8 



0.6 



0.4 



0.2 



2400 



3.000 



Fig. 1. 



2,600 o2,8D0 



Wave Length in A 



-Absorption curves of: (1) serum pseudoglobulin; (2) serum albumin. 

 F. C. Smith, Proc. Roy. Soc. [London] B. 104 : 198. 1929.) 



(After 



Egg albumin was found to have an absorption curve similar to that 

 of serum albumin (3, 34, 35, 55). Lewis (34, 35) remarks that the close 

 similarity in form of all the curves when corrected to a common ampli- 



