Further about the map printing problem [see FB's 1841-4-6].
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Further about the map printing problem [see FB's 1841-4-6].
Provides examples to justify governmental support of various magnetic and meteorological observations. States that 'Terrestrial magnetism ... of all sciences of observation holds out the greatest present prospect of decisive reduction under ... exact theory.' Mentions work by N. L. Lacaille and Thomas Maclear at the Cape.
Has not unpacked William Herschel's letters that JH secured from the R.S.L.
Sends letter on the subject of the star maps.
Regarding the payment of John Arrowsmith's bill for the printing of the star maps, which seems excessive in relation to the low standard achieved. Would like FB's comments.
Would like some dry prints of the star map, if no further expense is involved. Is sorry that he has caused him all the bother.
Sends missing barometer observations from Montreal, Flushing, and Albany. B.A.A.S meeting postponed.
Doubts that isomerism of all elements can be verified experimentally, but notes a number of groups with similar atomic weights that might well fit. Further on vegetable colors in photography. Refers to enclosure of a further dialogue on infinity.
Asks WW to be godfather to JH's new daughter, Amelia. In reviewing WW's [Philosophy of the Inductive Sciences] has found many of JH's views changing, but cannot accept his dear friend's a prioristic approach.
Is moving the date for christening JH's daughter [Amelia] and WW's goddaughter to 3 May to accommodate the godmother, Maria Edgeworth.