Wants to make a new musical instrument on the principle of resonance; JH also suggests some improvements in the construction of the organ.
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Wants to make a new musical instrument on the principle of resonance; JH also suggests some improvements in the construction of the organ.
Thought that AD's last letter was supposed to be written in verse. Hopes his injury will soon improve. Does not recollect any habit of Humphry Davy rubbing his hands together. A professor, [G. J.?] Stoney, has re-invented JH's collimating telescope and not improved it.
Comments on the state of JH's health, color blindness, missing R.A.S. Notices, and decimal coinage.
Offers AD a puzzle and JH's solution to AD's problem about a body revolving in the evolute of an ellipse. On sending Francis Baily's correspondence to Greenwich.
Reading proofs of JH's Essays Q. E. R.; working on an article on meteorology.
On some odd results JH has arrived at about P. S. Laplace's barometric formula.
On magic squares.
Regarding the possibility of decimal coinage. Washes his hands of adjectives expressed in algebraic form. Has received good news from India.
Comments about JH's ancestor, Hercules, and replies to S. J. Loyd's (1st Baron Overstone) queries [see AD's 1857-10-9].
A proposition in perspective, and some nonsense.
Is AD interested in the Lowndean Professorship at Cambridge?
Questions the exact beginning of the year 1857, and offers 'Old King Cole' in Latin.
Still worrying about where does the day begin?
Riddles, Latin nursery rhymes, and an eclipse description.
About insects JH's children caught and photographed; on a book on harmonics.
Errors to be corrected in a new edition of one of JH's writings, including spelling AD's name in the French way.
On the definition of an island, and an invitation to lecture about a comet.
About biographical information on George Peacock.
Responds to AD's 1859-2-24 on forces, which degenerates into nonsense; comments on James Kemplay's writing on comets.
Comments on 'cause' and 'will.'