From:
Charles Robert Darwin
To:
John Tyndall
Date:
20 Oct [1875]
Source of text:
Rensselaer Libraries, Rensselaer Polytechnic Institute (Gerald and Sue Friedman manuscript collection MC 72 Box 1)
Summary:
JT’s tube [of boiled infusion] dated 16 Oct was clear on 19th; on the 20th it was muddy and contained many bacteria in living movement.
Contributor:
Darwin Correspondence Project