The rarity of the condition of levulosuria unassociated with glycosuria justifies a detailed report of the case which we were able to study.
The subject may be conveniently discussed under three headings :
Alimentary levulosuria in diseases of the liver.
Levulose associated with glucose in diabetes mellitus.
Rare cases in which levulose alone has been found.
As our case belongs to the last division, the first two conditions will be discussed only as they may throw light on the clinical features and pathogenesis of levulosuria, and the extensive literature on the subject, recently reviewed by Koenigsfeld,1 will be handled in the same manner. In patients suffering from certain diseases of the liver, H. Strauss2 found that the feeding of 100 gm. of levulose produced levulosuria, and this has been extensively used as a method of functional diagnosis of liver disease. It has been supposed that