The Effect of an Infusion of Hyperoncotic Albumin on the Excretion of Water and Solutes 12

The origin of the diabetes insipidus appeared to be post- encephalitic in F. S. and due to reticuloendotheliosis in J. V. Both had an inability to concentrate the urine al- though the volumes in J. V. were not tremendous which may have been related to a coexisting mild hypothyroidism. Patient F. S. had the typical response of diabetes insipidus to the Hickey-Hare test (6). This was not per- formed on subject J. V. It is, of course, impossible to state whether the diabetes insipidus