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I sent you a few days ago a map and a paper on v. Lammerring's observations from which I still hope to obtain further conclusions.
You will no doubt have a strict watch maintained on the Sun between Mar 25 and April 11 for the new planet. We have written to Madras and the United States for cooperation.
Yours faithfully
R.C. Carrington
Prof Secchi
[notes in the margin]
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