About JG's journey to Nantes.
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About JG's journey to Nantes.
Asks JH to communicate to some friends for him.
Informs JG about mutual friends and JG's daughter.
Requesting the opinion of JH's late father on the nebulae in Orion.
Sends MF some older samples of imperfect glass. Talks about the way in which different kinds of glass should be layered in lenses.
A letter of introduction to AQ on behalf of John Franklin [famous explorer of the Northwest Passage].
Sends letter from [George] Gipps. WR wants to assists Gipps in astronomical pursuits. Asks JH for assistance.
Asking JH's opinion on how he should print his catalogue of observations of transits. Requests information on any forthcoming comets.
Has returned from Southend. Has letter from Charles Babbage in which he relates events and people met at the Berlin Academy.
His own paper on moon culminating stars for 1829 is now printed. Time Encke's Comet was visible. Foreign encouragement for science. Remarks on pendulum experiments.
Asks about JH and WW collaborating on a volume for Dionysius Lardner's Cabinet Cyclopaedia. Discusses aspects of mineralogical classification and crystal structure.
Many thanks for his communications, especially for the one on light. This may be translated into German by J. E. E. Schmidt, and he would be grateful if JH would authorize this to be done.