Discusses editorial actions taken by JH in editing mathematical manuscripts of William Spence, including materials recently sent to JH by JG.
Showing 121–137 of 137 items
Discusses editorial actions taken by JH in editing mathematical manuscripts of William Spence, including materials recently sent to JH by JG.
Mentions some chemical experiments on which JH has worked; hopes EC will exhibit his experiments for R.S.L.
Describes chemical experiments carried out by JH on corundum. Attempts to interpret these experiments.
Praises EC for 'amazing experiments' published in [William T.] Brande's journal [Quarterly Journal of Science and Art]. Wishes EC's publication had appeared in R.S.P.T. Has an experiment to show EC.
Thanks EC for his interest in a paper JH submitted to the Geological Society. JH has come to question some of his observations and to recognize that J. J. Berzelius anticipated JH's recognition of the acid nature of silica.
Reports on some chemical results obtained by JH.
Sending EC a specimen that W. H. Wollaston describes as 'the most intractable substance by fire' he has ever seen. Discusses its properties and possible chemical composition.
Returns with thanks EC's specimen of Island Crystal. Also discusses specimen of titanium lent by EC.
[Addressed to WN as 'Editor of the Journal of Natural Philosophy, Chemistry, and the Arts from 'A Lover of Modern Analysis' [JH], this letter] derives by a new method various analytical formulae for the tangent and cotangent.
[Addressed to WN as 'Editor of the Journal of Natural Philosophy, Chemistry, and the Arts from 'A Lover of Modern Analysis' [JH], this letter] derives by a new method various analytical formulae for the sine and cosine.
Is actively pursuing mathematical investigations. Plans to come to Cambridge soon for a short visit. Will follow this first letter by many more. Excavations by the Geological Society going on in JH's area.
Asks about WW's mathematical investigations. JH's book on algebra is progressing. Describes mathematical investigations by [Edward] Bromhead in calculus of factors. Misses Cambridge.
Is pursuing mathematical investigations with Charles Babbage. Asks WW to check whether George Peacock is progressing in printing the Supplement to Lacroix's volume.
Thanks WW for and expresses agreement with WW's analysis of Simon Stevin. Describes experiments JH is conducting on the polarization of light.
Praises WW's new book [Elementary Treatise on Mechanics]; is working to get WW elected to the R.S.L. Criticizes a pamphlet by George Peacock. Comments on rules proposed for the new Cambridge Philosophical Society.
Discusses at some length the strengths and weaknesses of Lucan's Pharsalia. Mentions JG's pamphlet on usury laws, suggesting that the argument from analogy is especially precarious in political economy.
Of Charles Babbage's trip to Scotland [letter continued 1819-10-8].