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Contrasts EC's catalogue of comets with that of J. F. Encke.
Confirms measurements of a transit circle.
Congratulates EC on the first volume of Stars near the Ecliptic: JH expects never to observe again.
Returns EC's manuscript with some comments.
Offers a variety of solutions to stopping 'offensive light' during solar observations.
Regarding the non-arrival of his star catalogues. Thinks that four volumes will finish the observations.