2 matching record(s)
MS Gunther 23Riddle, John
On the Corrections of Latitude and Middle Time, from Double Altitudes of the Sun
1850.
[Unknown]
1850
Radcliffe Tracts 47 (12)Riddle, John
On the Corrections of Latitude and Middle Time, from Double Altitudes of the sun
Greenwich, 1850.
[1934-41]
1850