Is grateful for the information on photography. Encloses president's card.
Is grateful for the information on photography. Encloses president's card.
Prepared to send to CH copies of the Index to John Flamsteed.
Has sent on one of EH's two letters to Cape Town. Reports on meteor showers, especially meteors seen on 14 Nov. 1837. P.S. adds that JH has received a number of papers by EH.
Asks WW to approve cost of report forms to be sent to the Breslau Observatory. Has heard that WW's book is nearing completion and contains 'heresy.' Has just submitted a paper on 'photographical matters' to the R.S.L.
Enlarges upon his method of using salt as photographic fixer; then asks JH to explain the chemistry thereof. Has tried Louis Daguerre's fixing process without success.
Outraged over a [London] Times report of a massacre at Fort Natal in the Cape colony, which AS believes cannot be true; backs up his belief with a letter from a soldier at Fort Natal. Will take a business trip to Holland after which he 'will be ready for anything the Government may please.'
Making his last experiments on the morrow. Travels to and from Slough in the course of his experiments. Hopes JH will join him.
Regarding the four foot scale standard of Thomas Maclear. Will be pleased to see him on Thursday. R.A.S. has had a letter from the Treasury regarding a grant for Glasgow Observatory.
No summary available.
Thanks for his letter. His barometer is not intended as a mountain one. Though a slight error does appear now and then it is no worse than other barometers, excepting that at the R.S.L. Would like JH to communicate the drawing and description to the R.S.L.
Sent WT's specimens to J. B. Biot and F. J. D. Arago in Paris. Developed paper sensitive to heat rays of sun 'beyond the spectrum.' Diagram of three spectra: 'luminous, chemical, and thermic.'
No summary available.
No summary available.
Is pleased to hear that JH has taken steps to avoid the carelessness at the Post Office. Sends original of R. W. Fox's paper.
The belladonna JH gave him is throwing up vigorous leaves. Has a scheme for making it leaf and flower in the same season. Has some ingenious machines to show JH when he calls, which may be useful to JH.
Would like to assist James Stewart as JH asked, but CG resigned recently as Colonial Secretary and cannot help. [JH annotation: 'Called on Lord G. [Glenelg, i.e., Charles Grant] with Js St. [James Stewart] May 1/39.']
Has opened the box of dried specimens, but they are unsuitable for his purpose as they are not flat. Suggests that King's College or University College may be a more suitable home for them.
Supports John Lawrance’s application to become a fellow of the Geological Society.
Read JH's letter to [Felix] Booth regarding magnetic observations in Europe. Describes WB's building and instruments for magnetic observations. Wants information about German observations.
Has finished earthquake paper ["Volcanic phenomena in South America" (1840), Collected papers 1: 53–86]. Gives instructions about a woodcut. There should be an outline map.