The importance of the early diagnosis of malignant neoplasms and tuberculosis seems a sufficient reason for reporting the observations in the following cases.
The aim has been to study the reaction in as wide a series of various conditions and diseases as possible, and thus to throw as much light as possible on the value of the reaction from a diagnostic standpoint rather than merely to duplicate the work already done with reference to carcinoma and tuberculosis.
With reference to the reversed hemolysis in tuberculosis, the aim has been to study the reaction in early cases, and in those with small localized or latent lesions with slight or no positive clinical symptoms or signs, but giving a positive tuberculin reaction.
Table 1 is a list of the findings in such tuberculous cases studied, the hemolytic reaction being negative in the large proportion in