In this paper we wish to present further results obtained from a study of a series of male opium addicts made while we were supplying their needs with morphine. These studies include fractional gastric analysis, roentgen examination of the gastro-intestinal tract, functional tests of the liver, dextrose tolerance tests, chemical and microscopic examinations of the urine, phenolsulphonphthalein tests and studies of the basal metabolic rate, temperature, blood sugar response to morphine and to epinephrine and the results of roentgen examination for persistent thymus.
FRACTIONAL GASTRIC ANALYSIS
The secretory response of free and total acid of the stomach to the standard Ewald test meal was studied by the fractional method in eighteen different addicts. In all cases, samples of gastric juice during fasting were removed for analysis. Table 1 gives the results obtained in these cases for the contents both during fasting and at intervals of fifteen minutes following completion of