Left his job because of precarious health. Is retired. Discusses achromatic telescopes and his ideas for correcting spherical and chromatic aberrations.

Sends copy of his account of the achromatic telescope because JH did not receive the original. Constructing an achromatic telescope of 5-foot focal length.

Recently received telescope from the optician. Some adjustments are necessary. [Robert] Blair has a similar idea regarding telescopes. Asks JH to mention his idea to the Astronomical Society.

Gives permission to release his telescope proposal to others. Discusses the progress of the telescope. Considers modifying the arrangement of lenses.

Asks JH to report how James South's telescope performs. There was a defect in the settings of the telescope. Hopes JH's method of eliminating chromatic aberration improves the microscope.

Has received a letter from the Astronomical Society secretary. Worries AR may have offended JH and requests guidance. Describes performance of his telescope.

Proposes to send telescope to JH to have a new lens made. Desires JH's opinion of the telescope's utility. Is hesitant to join Astronomical Society.

Thinks his telescope was not well executed. Would be pleased if James South tried another. Advises how to improve performance of telescope.

Anxious to hear the opinion of his telescope. Notices best resolution with a 3.5-inch aperture. Also, distinctness is best with correcting lenses in certain diametric position.

Discusses further adjustments for the telescope. If JH returns to England soon, AR will come to Slough with the telescope.