Galen: On the Natural Faculties by Galen

2 by Galen, Galen, Brock, Arthur John, 1878-1947

Chapter 19: Chapter XV

Chapter 19: Chapter XV

It now being granted that the urine is secreted by the kidneys, the _rationale_ of this secretion is enquired into. The kidneys are not mechanical filters, but are by virtue of their _nature_ possessed of a specific faculty of attraction.
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