Georg Merz's practice regarding the sale of object-glasses. Is preparing a model of a transit circle.
Showing 181–200 of 331 items
Georg Merz's practice regarding the sale of object-glasses. Is preparing a model of a transit circle.
Concerning object-glasses.
Concerning the new meridional instrument. Is JH coming to town soon?
Regarding the reinstatement of the zenith tube.
Further information on the zenith tube. Description of a zenith tube.
Regarding Mary Somerville's proposals for extraordinary terrestrial refractions—Admiralty Manual.
Asks JH for his opinion of F. W. A. Argelander's letter concerning the publication of his work by the R.A.S.
Concerning the eighth satellite. Observations on U. J. J. Leverrier's paper.
Queries regarding the perturbation sheets.
Encloses perturbation sheets for checking.
Has received further proof sheets of the perturbations from the printer. Regarding Isaac Newton's theory of the motion of the moon's apse.
Further regarding GA's defense of Isaac Newton's theory on the moon. J. H. Seyfforth's theories seem plausible. Ipswich Philosophical Society.
Regarding the annual equation of the moon's motion.
Regarding the annual equation of the moon's orbit.
Observations on JH's chapters [of Admiralty Manual?] received from the printers.
Has received the Cape of Good Hope observations. Regarding work on the Board of Longitude. Has received the portrait of William Herschel.
Asking JH to sign an enclosed item.
On various astronomical matters.
Regarding the origins of the R.A.S. Will try and find a substitute trustee.
Cannot find any record of his having written. Is sending an official request from the Admiralty for JH to superintend the dome of the Cape telescope. Advice regarding his overpayment of money to the Astronomer Royal.