300 Wassermann Reaction for Diagnosis of Syphilis 



Test 

 Tube containing the serum to be tested. 



g'S'S 



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" B> ffi 



Ill 



3 8 I? 



. o'g Off 



i-§ ^ 



r.B-0-.- 



!» P-" S^ 



- <'°B-Z 

 &S S 



Control 



Control of serum to be tested to deter- 

 mine substances which without antigen 

 may inhibit hemolysis. 



Control 

 Control of the test by the use of a 

 known syphilitic serum. 



.?.S' 5 o> 



3" 





-t*" 



Control 



Control of the known positive to deter^ 

 mine that it contains no recently 

 developed substances that may inhibit 

 hemolysis. 



m* *sj 



Control 



Control of the test by the use of a 

 known normal serum. 



Control 



Control of the known normal serum to > 

 determine that no substances inhibiting 

 hemolysis had developed in it. 



(C O (ft 



C Co 



^^ ^ 



Control 



Control test to determine changes in 

 the antigen by which hemolysis might be 

 prevented. 



c o 

 n a 



» o 



Control 

 Control for the purpose of determining 

 the presence of anti-sheep amboceptors 

 in the serum to be tested. 



