| Description | ' Concerning his Observations and Instruments, some Specimens of his Observations of Altitudes and Distances, of Errors in the Tables as to the true places of several Stars : vindicating plain Sights : containing an OBservations of Mars October 6, 1672 N.S.; and of Saturn November 6, 1675 N.S : and inclosing his Observations of a Solar Eclipse 1/11 June 1676. ' |