Daniel Freehauff was an astronomer from Allentown, Pennsylvania.
2 volumes, ca. 317 p.
Presented by George Vaux and accessioned, 03/21/1834 (35).
These two volumes contain astronomical calculations for two eclipses observed in Philadelphia, one in 1778, the other in 1779. In addition to the data and calculations, the volumes contain detailed essays of how to make such calculations.