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Darwin Correspondence Project

To Isidoro Dell’Oro   2 May 1873

May 2. 1873


I am very much obliged to you for your kindness in having sent me the account of the silk-worms, which I have read with great interest.1

I quite agree with your remarks on the benefit derived from a change of conditions.2 You do not state that you require the Gazette to be returned, & I will therefore keep it unless I hear to the contrary—3

Dear Sir | yours faithfully & obliged | Ch. Darwin


CD refers to Isidoro Dell’Oro’s ‘Sericulture, and silk in Japan and in Europe’, London Gazette, 17 January 1873, pp. 169–75.
Dell’Oro believed that a change of locality, climate, and rearing practices would help save the eggs from the superior-quality yellow silk cocoons found in Italy, which were subject to a disease (pebrine) that caused larval atrophy; to test his views, he took yellow cocoons from Italy to Japan (London Gazette, 17 January 1873, pp. 172–3.
There is no copy of the article from the London Gazette (see n. 1, above) in the Darwin Archive–CUL.


Thanks correspondent for sending him an account of silkworms.

Letter details

Letter no.
Charles Robert Darwin
Isidoro Dell’Oro
Sent from
Source of text
University of Toronto, Thomas Fisher Rare Book Library (MSS gen 02.014)
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 8893,” accessed on 24 March 2018,

Also published in The Correspondence of Charles Darwin, vol. 21