18 August 1777
Rittenhouse, David, 1732-1796
Autograph letter signed
Title: to John Page
Written by Rittenhouse, a well-known astronomer and instrument maker, as Pennsylvania state treasurer to Page as Lieutenant Governor of Virginia. References Page's letter of 25 March 1777. Thanks him sending his observations on the eclipse of the sun and the transit of Mercury. Says he is going to do a write up of the eclipse and needs Williamsburg, Virginia's (where Page wrote from) true longitude. Says next eclipse of the sun in June will be total. Discusses in detail the angle of observation for an eclipse and the path of Venus. Says he will send something to Page for publication since…
GLC05974