THE THEORY AND PRACTICE OF SURVEYING ; 1627 CONTAINING ALL THE INSTRUCTIONS REQUISITE FOR THE SKIL- BY ROBERT GIBSON. ILLUSTRATED BY COPPER-PLATES. NEWLY ARRANGED, IMPROVED, AND ENLARGED, WITH USEFUL AND A NEW SET OF ACCURATE MATHEMATICAL TABLES BY JAMES RYAN, NEW-YORK: PUBLISHED BY EVERT DUYCKINCK, G. Long, Printer. 1821. |