A small dose, 0.5 Lf, of dissolved diphtheria toxoid-antitoxin floccules (D.F.), injected intracutaneously, acted as an efficient booster in Schick-negative persons, in pseudoreactors to the Schick and Schick control tests and in those who reacted locally to the D.F injection itself (104 in all). It had no demonstrable boosting effect on the circulating antitoxin of 9 Schick-positive adults, 2 of whom were known to have been immunized in the past.
I. The value of skin test in the diagnosis of bilharziasis is discussed. 2. Of 27 children between the ages of 9 and 16 years passing B. haematobium ova in the urine. only 3 (11%) gave a positive skin reaction. 3. The skin sensitization appears to be related to the duration of infection or possibly to the age of the patient. 4. A negative skin test, particularly in a child, does not exclude the diagnosis of bilharziasis.
1. International standards for the establishment and functioning of EEG departments are outlined and the necessity for their observance stressed. Methods of EEG recording, analysis and interpretation are noted. 2. A survey of the EEG's of 350 epileptic and 24 cerebral organic patients is presented; 61 % of the former and 83% of the latter showed abnormal EEG's. Approximately 8% of the EEG's of the epileptic group were converted by rhythmic photic stimulation from normality or non-specificity to positive diagnostic abnormality. 3. A detailed qualitative analysis of the normal, questionable and abnormal features encountered in both spontaneous and activated EEG's is presented.