Abstract
Summary
When a dye solution is run into the frog's kidney in such a way that, in the lower portion of the kidney, it runs into tubular capillaries and into a large number of glomerular capillaries, while in the upper portion of the kidney it runs into tubular capillaries, and into only a few glomerular capillaries, the amount of dye excreted follows the number of active glomeruli receiving dye solution, although both halves of the kidney are producing urine.
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