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Will be in London and hopes to see JH. Thanks for his letter and the promise of sending his papers on light. Also wants information on [Louis] Daguerre's work.
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Thanks JH for papers on light and photography. Enjoyed her visit to Collingwood. Feels privileged to be godmother to JH's daughter.
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Discusses light experiments, which 'amused' her during summer. Has heard no scientific news lately. Describes summer in Rome.
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Delighted that her paper was read at Royal Society. Discusses discovery of new planet [Neptune], and the future. Asks about his work.
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Sends Lady Herschel her book [Physical Geography] as a token of friendship. Discusses the current political turmoil. Regards to family.
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