Search: letter in document-type 
1860-1869::1868 in date 
Bowman, William in correspondent 
Cambridge University Library in repository 
Sorted by:

Showing 12 of 2 items

From:
William Bowman, 1st baronet
To:
Charles Robert Darwin
Date:
1 Apr [1868]
Source of text:
DAR 160: 268
Summary:

Asks for precise reference in Charles Bell to subject of CD’s question. Agrees to assist CD’s investigation. Asks about Bell’s observations on eyes engorged with blood. Has noticed that eyes of children with excessive photophobia tend to be pale when forced open.

Contributor:
Darwin Correspondence Project
thumbnail
From:
Charles Robert Darwin
To:
William Bowman, 1st baronet
Date:
2 Apr [1868]
Source of text:
DAR 249: 72 (photocopy)
Summary:

Gives Charles Bell’s explanation of the contraction of the orbicularis during screaming and seeks confirmation of his view because the action is "the key-stone of a whole class of expressions". Curious to learn WB’s conclusion in regard to the relation between contraction of the orbicularis and secretion of tears. Notes that voluntary contraction of the orbicularis causes no tears.

Contributor:
Darwin Correspondence Project