Fim<ii Questionably Pathogenic 35] 



tive of many reported in the medical literature. We do not wish to go on 

 record as not believing that in many instances the disease reported was 

 caused by a fungus of uncommon pathogenic propensity. Rather we wish 

 to emphasize the difficulty of offering adequate proof short of the study of 

 a series of patients, with mycologic, histologic and immunologic observa- 

 tions and, if possible, with experimental autoinoeulation. When the diag- 

 nosis is in doubt or when an ordinary saprophyte is isolated, proof of patho- 

 genicity is squarely the responsibility of the reporter. As we have stated, 

 when sufficient evidence is lacking, the doubt as to the diagnosis should 

 be indicated in the title by a question mark. 



BIBLIOGRAPHY 



Hollingswohth, R. S. : Unusual case of actinomycosis of hand, J. A. M. A. 105:1266, 1935. 

 Kovnat, M.. \M> Mezei, C. : Streptotrichosis: Report of case, J. A. M. A. 99:2021, 1932. 



