A collection of birthday greetings from JH, his wife, Margaret, and seven of their children, six of whom wrote their greetings in German. JH refers to Biela's Comet having thrown off a portion of itself, producing what JH calls a 'Double Comet.'
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A collection of birthday greetings from JH, his wife, Margaret, and seven of their children, six of whom wrote their greetings in German. JH refers to Biela's Comet having thrown off a portion of itself, producing what JH calls a 'Double Comet.'
[Written as a family letter.] JH has corrected the first proof sheet of his Cape Results. Reports that Biela's Comet has been found to be a double comet.
Reports that Biela's Comet split into two comets; JH has observed it several times. 30-40 pages of JH's Cape Results have been printed.
JH is working hard on his Cape Results.
JH is sending with the letter a finished printing of his Cape Results, which JH describes as 'the completion of my Father's work—the survey of the Nebulous Heavens.' Also mailing a copy of the Cape Results to the King of Hanover. Wilhelm Struve, John Couch Adams, and U. J. J. Leverrier are visiting Collingwood.
JH expects that CH has received the copy of his Cape Results that he sent recently.