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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
Document type
letter (1)
Author
Addressee
Correspondent
Darwin, C. R.[X]
Murphy, James[X]
Date
letter