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Needs help understanding Percades [?] quantity. Inquires as to well-being of family and sends regards.
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Thanks JH for critiquing her paper during his illness. MS's On the Connexion of the Physical Sciences is to be published in translation at Cesna.
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Enjoyed visit of Louisa [Herschel Marshall]. Wants copies of JH's new articles. Is witnessing a solar eclipse, in which half the disc was covered, as she writes.
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