ane BOOM §=QUADRANT.
DEPT.
*XD
©1795 -J72D
Jones, William, 1763-1831.
The description and use of the sea octant, commonly called Hadley's quadrant; wherein its use is exemplified by proper examples and tables, and an account given of the new additional ap- paratus that are applied to it, for determining the latitude and longitude with the greatest possible accuracy. To which is annexed, A demon- stration of the theory of this excellent instru-
ment. The second edition corrected. By William Jones ...
(See next card)
& MB-Rev.