Note 292 — MEMOIR OF THE LIFE OF DAVID RITTENHOUSE; CONTINUED, FROM THE TIME OF HIS SETTLEMENT IN PHILADELPHIA.
Reading edition
The continuation of the 6th volume of the American Philosophical Transactions (published in 1809) contains various observations on the Annular Eclipse of the 3d of April, 1791, made at Greenwich, Paris, Cambridge in New-England, Philadelphia, and George-Town in Maryland. A recapitulation of the results of the longitudes of Philadelphia and Cambridge, west from Paris, is made from the Transit of Venus, in 1769; the Transits of Mercury, in 1782 and 1789; this Annular Eclipse of the Sun, in 1791, and a Solar Eclipse, in 1806; the mean results of which, give
The Long. of Philadelphia, W. from Paris, 5h 10′. 01″,2
Do. of Cambridge, Do. 4. 53. 53
These observations were communicated to the Philosophical Society by Don Joseph J. Ferrer, of Cadiz, a very respectable astronomer, and a foreign member of the Am. Philos. Society.