The description and uses of Barston's new-invented universal astronomical quadrant, which appears from authentick certificates transmitted to the Right Honourable the Lords of the Admiralty, to excel all others in navigation; and from repeated experiments of able astronomers, &c. to be more serviceable in astronomy, surveying of land, and dialling, ...
London : printed: and sold by T. Cox: and J. Turner,
1740.
ESTC