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The observations here given were made at Westbury, in Somersetshire, in the years 1800 and 1801, with a circular instrument of 2½ feet in diameter, constructed by Mr. Troughton. The stars selected by our author were, for a period of nearly two years, constantly observed on the meridian, when they passed at a convenient hour, generally reversing the instrument in azimuth at the end of every day’s observation, and never making use of those observations that were not made in pairs. Mr. Pond has subjoined to his observations a comparison with some procured for him by Mr. Troughton, in which he has included the latest observations made at Greenwich.

abstracts of the papers printed in the philosophical transactions of the royal society of london

On the declinations of some of the principal fixed starts; with a description of an astronomical circle, and some remarks on the construction of circular instruments