CHAPTER V. 



Forms of Diagnosis.— Insecurity of Tu 

 berculine. — Clinical examination. — 

 Hypodermic injections in Cows.— 

 Their inconvenience . — The new 

 system. 



The difficulties, more imaginary than 

 real, of diagnosticating- tuberculosis 

 owing to the vagueness and feebleness 

 of many of its symtoms, has lead to 

 the belief that it is not possible to 

 discover the disease unless by the aid 

 of reactions having tuberculine as a 

 basis. For a long time owing' to the 

 popularity of the said lymph in the Ar- 

 gentine Republic, active professionals 

 completly neglected the clinical exami- 

 nation of the subjects thought to be 

 tuberculous. In the laboratory the diag- 



