marked disease of the kidney involving a large part of the parenchyma-neoplasm, pyonephrosis, severe nephritis-the elimination of sugar may be minimal or wholly abolished. The onset and cessation of the glycosuria may be different in diseased than in healthy kidneys. When both kidneys were diseased, the differ¬ ences disappeared, as they do with regard to the elim¬ ination of urea. As a rule, the elimination of sugar is slight or absent on both sides. With a few exceptions, the degree of

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... ria, of urea-elimination, and the molecular concentration of the urine, pursue parallel