E864 -- Several lines of a letter from Euler to the "Royal Society" dated October 21/November 1, 1768
According to Eneström, the letter concerned Dioptrics and lunar theory.
The content of this letter is
identical to E364 (1768).
Originally Published in the work of A. H. Church: The Royal Society. Some accounts of the letters and
papers of the period 1741-1806 in the archives, Oxford 1908, p. 16.
Opera Omnia: Series 1, Volume 23, pp. 450 - 455
- Original publication: E865
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