I think I desired the favor of you lately by letter, that when you wrote to Philadelphia you would desire Mr. Owen Biddle and Mr. Joel Bayley to take the trouble to determine the difference of meridians of Philadelphia and Norriton, in order to connect all the observations made by the three setts of observers together. I should be glad if you would also desire of your correspondents to obtain their observations of the transit of Venus &c. made at Philadelphia, in the State house square from the observers, and that they describe the telescopes made use of, and all circumstances of the observations, particularly in what manner they observed the contacts of the limbs of the Sun and Venus. I have delivered Mr. Biddle’s and Mr. Bayley’s observations to the Royal Society in your name. I am Dear Sir, Your most Obedient Servant