# The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art. With a New Set of Accurate Mathematical Tables

A. S. Barnes, 1839 - 412 pages

### Contents

 Bect 11 Of Logarithms 33 Elements of Geome 40 40 64 Changing the Scale 76 Method of dividing 95
 Maritime Surveying 220 108 Description of Instru 137 Of Distances 146 Logarithms of Numbers 17 Traverse Table 63

### Popular passages

Page 49 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Page 41 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Page 41 - The radius of a circle is a right line drawn from the centre to the circumference.
Page 45 - A lemma is something which is premised, or demonstrated, in order to render what follows more easy. A corollary is a consequent truth derived immediately from some preceding truth or demonstration.
Page 35 - DIVISION BY LOGARITHMS. RULE. From the logarithm of the dividend subtract the logarithm of the divisor, and the number answering to the remainder will be the quotient required.
Page 21 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.