Used by the late Gen Roy &c. in the great English Trigonometrical Operations London Printed for Published by W.and B.Jours, fo Habern as the directs pro7. AND GRAPHICAL ESSAYS, CONTAINING A GENERAL DESCRIPTION OF THE MATHEMATICAL INSTRUMENTS USED IN GEOMETRY, CIVIL AND MILITARY SURVEYING, LEVELLING, WITH MANY NEW PRACTICAL PROBLEMS, ILLUSTRATED BY THIRTY-FOUR COPPER PLATES. BY THE LATE GEORGE ADAMS, MATHEMATICAL INSTRUMENT MAKER TO HIS MAJESTY, &c. THE FOURTH EDITION, CORRECTED AND ENLARGED BY WILLIAM JONES, F. Am. P. S. LONDON: Printed by C. Baldwin, New Bridge-street; FOR, AND SOLD BY, W. AND S. JONES, 1813. Price 16s. in Boards. LIBRARY UNIVERSITY OF CALIFORNIA DAVIS |