Regarding his projected supplement. Calculus of deviations. Naming of periodical functions. [John?] Spence's manuscript.
Regarding his projected supplement. Calculus of deviations. Naming of periodical functions. [John?] Spence's manuscript.
Poses mathematical problems for 'polar equations of conic sections.'
On horse back riding, the law, and the birth of a daughter.
Discusses editorial actions taken by JH in editing mathematical manuscripts of William Spence, including materials recently sent to JH by JG.
Hopes to visit him in a few days. Regarding the calculus of derivations. Periodic functions. Is taking up mineralogy.
Invites WW and [Thomas] Leybourn to join JH for dinner while Charles Babbage is visiting JH at Slough.
Has sent JH's continuation of William Spence's 'Outlines' to press without any alteration. Gives the scheme adopted for the makeup of the volume. Hopes JH agrees; if not write at once as he is leaving London for some time.
Accepts invitation to visit Slough and meet Charles Babbage. [Thomas] Leybourn may accompany WW. Seeking area of conic sections.
Book will be arranged according to JH's wishes. Underwoods are to be the publishers. Is pleased JH has found signs of greatness in William Spence's works. Hopes JH will show this in his biographical introduction.