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Darwin Correspondence Project

From Gustav Wegner   24 November 1881

Coeslin—Pomerania | North Germany

24th. November | 1881

One evening in the Spring of 1878 shortly before sunset and during a perfect calm I noticed that a wheat blossom suddenly bent towards another one and both pressed on each other in a quick thrabbing motion. This was repeated several times. All the surrounding blossoms remained quite motionles. This happened at first at a distance of one metre and afterwards of two thirds of a metre from me. In order not to interrupt those spontaneous movements by my breathing—I held my hand before my mouth whilst observing their last contact. The blossoms were opened like little bells—

Soon after having made this observation I informed You of it by a Postcard written in German, but have received no answer.1

I have not the least doubt of the above fact and think it sufficiently important to informe You of it even now.

Yours truly | G. Wegner | Geheimer Regierungsrath2

Footnotes

The postcard from Wegner has not been found.
Geheimer Regierungsrath: privy councillor.

Summary

Reports observing two wheat flowers that bent towards each other and pressed together in a "quick throbbing motion".

Letter details

Letter no.
DCP-LETT-13508
From
Gustav Friedrich Edmund (Gustav) Wegner
To
Charles Robert Darwin
Sent from
Coeslin, Pomerania (Koszalin)
Source of text
DAR 201: 41
Physical description
ALS 3pp

Please cite as

Darwin Correspondence Project, “Letter no. 13508,” accessed on 5 June 2025, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-13508.xml

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