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From James Murphy 10 May 1876
Summary
A reader of Descent offers two items: 1. Masters observed a pericardial fold in humans and other mammals which is a vestigial left superior vena cava;
2. JM suggests the frenum of the human penis became necessary for vis-à-vis copulation when man became bipedal.
Author: | James Murphy |
Addressee: | Charles Robert Darwin |
Date: | 10 May 1876 |
Classmark: | DAR 171: 323 |
Letter no: | DCP-LETT-10503 |