Is writing an article on the life and work of George Boole and would like JH's advice on one of D. F. Gregory's references.

Has not had time to finish the George Boole paper, but the biographical part is in print. Will send him the complete article when it is finished.

Comments on analytic symbolism in mathematics.

Expresses thanks for RH, in a paper on George Boole in the British Quarterly Review, giving JH credit for having published 'my introduction of the mode of separation of the symbol of differentiation from the differentiated function and executing on it operations analogous to those of common algebra.'

Intends applying for the chair of mathematics at Queen's College, Cork and would be grateful for a testimonial from JH.

Is Secretary of a committee for advising on Indian weights and measures and would welcome any reports and pamphlets by WH's father [note on verso stating the letter has been passed to his father].

Is grateful for the pamphlets on Standards and will inform him of any decisions made by the Committee. Comments on the various national standards and systems used.

Thanks for the parliamentary papers, which the Committee have found very useful. Will soon forward his report, which recommends the metric system.

Will give him great pleasure if he can assist J. Parkhurst in any way, but regulations in Messrs. Green's ships will preclude him from their service. Met Margaret Brodie Herschel at the Stewarts a few days ago.

Reluctantly agrees to review a manuscript for a Mr. Adams.

Believes that David Brewster's instrument for examining the lines of the spectrum was based on a formula of JH. Would be pleased if he could supply him with the details and he will then request J. H. Dallmeyer to construct one.

Is grateful for his note. Will take an early opportunity of placing JH's communication before his readers. Curious the oversight should not have been noticed before. Has no more details of David Brewster's instrument.

On Monday he should receive the proof of his communication. Comments on this communication and how it will be presented.

Has read some extracts from JH's Prelim. Discourse and would be grateful if he has an old or soiled copy to dispose of.

Is grateful for the gift of his Prelim. Discourse. Had to pay 4/8 excess postage.

Thanks for the 4/8 postage. Query on William Hopkins's theory of the Earth's formation. Would be grateful for any scientific works.

JH's copy of the Nautical Almanac for 1864 will be forwarded to the R.A.S. J. H. Mädler has solved the problem of one of William Herschel's observations.

Has been studying the star discovered by Anthelm [Voituret Anthelme] in 1670. The star he discovered in Ophiuchus has not disappeared as stated by some astronomers. Bishop is seriously ill.

Has received several letters from German astronomers on U. J. J. Leverrier's suggestions for the re-naming of the asteroids. Comments on this. Is preparing a report for the R.A.S. and would like to hear JH's views on the subject.

Is very pleased he agrees with the present system of naming the asteroids; so does G. B. Airy. George Bishop died yesterday, and the Observatory is now in the hands of Bishop's son.