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To George Rolleston   5 September [1861]

Summary

GR’s letter is a gold-mine.

Pleased to have Pierre Gratiolet’s comment on the embryology of greatly modified organs

and GR’s valuable cases of analogous variation.

Doubts craniologists, but recounts his father’s opinion that the shape of CD’s head was altered when he returned from the Beagle.

Author:  Charles Robert Darwin
Addressee:  George Rolleston
Date:  5 Sept [1861]
Classmark:  Royal College of Physicians of London (ALS/D12)
Letter no:  DCP-LETT-3245

From George Rolleston   1 September 1861

Summary

The embryology of the vertebrate nervous system may be an exception to the law of inheritance at corresponding ages.

Author:  George Rolleston
Addressee:  Charles Robert Darwin
Date:  1 Sept 1861
Classmark:  DAR 176: 207
Letter no:  DCP-LETT-3241
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