From:
William Erasmus Darwin
To:
Charles Robert Darwin
Date:
[7–15 Apr 1868]
Source of text:
DAR 162: 80/4
Summary:
Langstaff has never seen the platysma act, and he believes it to be rudimentary in humans.
Contributor:
Darwin Correspondence Project
Langstaff has never seen the platysma act, and he believes it to be rudimentary in humans.
On dentition of moles. On double teeth [see Variation 2: 391].
Difference in size of male and female Crustacea.
Describes the action of facial muscles at the onset of crying as observed by Langstaff.
Thanks for sending Variation.
Goes to N. Wales with Huxley.
Wishes to borrow Duke of Argyll’s Reign of law.
The BAAS Presidential Address [Rep. BAAS 38 (1868): lviii–lxxv] – his unhappiness about it; history of botany requires too much reading.
Smith will supply notes on Euryale.