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To Nicolai Krohn   18 December 1881

Summary

"The number of worms in your garden is astonishing … it will be an interesting observation, how soon the land is again stocked with worms, & whether the grass grows better before this happens. – I neglected to observe whether worms distruct [disturb?] the roots of grasses. – You will probably be able to borrow … my book On the Formation of Vegetable Mould … in which … you will find a good deal about the natural history of worms."

Author:  Charles Robert Darwin
Addressee:  Nicolai Krohn
Date:  18 Dec 1881
Classmark:  J. A. Stargardt (dealer) (24 & 25 November 1981)
Letter no:  DCP-LETT-13561

From Nicolai Krohn   16 December 1881

Summary

Perchloride of mercury applied to his lawn destroyed thousands of earthworms, but ruined the grass.

Author:  Nicolai Krohn
Addressee:  Charles Robert Darwin
Date:  16 Dec 1881
Classmark:  DAR 169: 124
Letter no:  DCP-LETT-13555
Document type
letter (2)
Addressee
Correspondent
Darwin, C. R.[X]
Krohn, Nicolai[X]
Date
1881 (2)
letter