From Herbert Spencer   8 February 1868

Summary

Thanks CD for copy of Variation.

Discusses Pangenesis and considers CD’s "gemmules" comparable to his own hypothetical "physiological units" ["On alleged ""spontaneous generation"", and on the hypothesis of physiological units", appendix in The principles of biology, vol. 1 (1864)].

Letter details

Record number

DCP-LETT-5851

From

Herbert Spencer

To

Charles Robert Darwin

Date

8 Feb 1868

Sent from

Bayswater

Source of text

DAR 177: 227

Physical description

4pp

Contributor

Darwin Correspondence Project[View Ɛpsilon collection]

Also published in The Correspondence of Charles Darwin, vol. 16.

• Darwin, C. R.
• Spencer, Herbert