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Secular inequality of the moon's mean motion. Appreciation of Pontecoulant's work. Letter or extract of letter transcribed for MacAlister's biography.

Astronomical notes, some dated 16 May 1855. Including "Errata in Pontecoulant's Theorie Analytique" "Errata in Plana's Theorie de la lune", "Errata in Damoiseau's Theorie de la lune". "Extract from Newton's MS used by Pemberton in preparation of 3rd ed. of Principia 16 May 1855", Various memoranda, "Extract from Sherburne's Catalogue of the most eminent Astronomers, Ancient and Modern. London, 1675".

Pontecoulant's letter. Letter or extract of letter transcribed for MacAlister's biography.

Pontecoulant's letter; motion of the moon. JCA's defence. Letter or extract of letter transcribed for MacAlister's biography.

Comments on Pontecoulant's comments on JCA's work on the secular acceleration of the moon's mean motion. To be transmitted to Pontecoulant if JWL thinks proper.

See 36/18/1 for French translation. Acknowledgement of copies of CD's replies to LeVerrier's attacks on his theory of the moon. Nature of LeVerrier, Hansen's and Plana's errors. M. de Pontecoulant's letter in Monthly Notices of RAS. See 16/17/2 for another version of this letter.

Incomplete. See 16/17/1 for another draft of same letter. See 36/18/1 for French translation. Acknowledgement of copies of CD's replies to LeVerrier's attacks on his theory of the moon. Nature of LeVerrier, Hansen's and Plana's errors. M. de Pontecoulant's letter in Monthly Notices of RAS.

Acknowledgement of AC's papers on Disturbed Elliptic Motion etc. Request to have separate copies privately printed of paper on Secular acceleration [of moon's mean motion]. Corrections and additions to be made. [See "Reply to various objections against the theory... [M de Pontecoulant]" Monthly Notices RAS. Vol.20 (1860) Collected papers Vol.1 p160]

Sends a postscript to be added to paper on Secular equation [acceleration of moon's mean motion]. Corrections to be made to original paper. [See "Reply to various objections against the theory... [M de Pontecoulant]" Monthly Notices RAS. Vol.20 (1860) Collected papers Vol.1 p160]

Acknowledgement of proof of paper corrections now final. [See "Reply to various objections against the theory... [M de Pontecoulant]" Monthly Notices RAS. Vol.20 (1860) Collected papers Vol.1 p160]