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Darwin, Francis in addressee 
1870-1879::1873::04 in date 
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From:
Charles Robert Darwin
To:
Francis Darwin
Date:
[before 15 Apr 1873]
Source of text:
DAR 271.4: 6
Summary:

Sends to Pantlludw [North Wales] bottle of formic acid. FD and Amy [Darwin] can search for spawn. If found, keep in two basins and add 6 drops of acid to one and look for differences.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Francis Darwin
Date:
16 Apr [1873]
Source of text:
DAR 271.3: 6
Summary:

"Try only 1 or 2 drops of Formic A[cid]."

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Francis Darwin
Date:
[17 Apr 1873]
Source of text:
DAR 271.3: 7
Summary:

Fears all the seeds are dead. Will try with less vapour of formic acid.

Contributor:
Darwin Correspondence Project