TREATISE OF PRACTICAL NAVIGATION Demonftrated from it's First PRINCIPLES: Together with all the Neceffary TABLES. To which are added, The Ufeful Theorems of MENSURATION, SURVEYING, and GAUGING; with their Application to Practice. Written for the Ufe of the ACADEMY in Tower-Street. By ARCHIBALD PATOUN, LONDON: Printed for J. BROTHERTON, J. HAZARD, W. MEADOWS, T. Cox, W. HINCHLIFFE, W. BICKERTON, T. AS TLEY, S. AUSTEN, L. GILLIVER, and R. WILLOCK. M.DCC.XXXIV. 6-21-47. NB J. WILLIAMCLELAND, Efq; Of Rayhouse in the County of Effex. SIR, Having had the Honour of your Acquaintance for fome Time, and confidering your Qualifications in this Subject, together with the Obligations I lie under to you, I could not find a more proper Perfon to patronize this Work: Where A 2 fore, 1 ment of the many Favours received, I humbly beg leave to Dedicate this Piece to you; and am with the greatest Regard SIR, Your most Obliged and moft Humble Servant THE PREFACE T HERE are fo many Books of Navigation already extant, that it may feem impertinent to trouble the World with a new One; especially fince fome good Mathematicians both at home and abroad, and many who were perfect Masters of the Practice, have written on this Subject. The former thefe being fond of ingenious Speculations, have generally been too prolix on the Theory, and too short on the practical Part. Whereas the later have in a great Meafure neglected the Theory, and not being very folicitous about Language or Method, have delivered the practical Rules in fuch a Manner, as they cannot be easily comprehended, and much less remembred, especially fince there is feldom mention made of the Reasons on which they depend. But I am very far from finding fault with all the Books on this Subject; for there are fome very full both on Theory and Practice, against which, I have no other Objection but that they are too tedions to be taught, and too dear to be purchased by most People. Youth |