## A Manual of Surveying for India, Detailing the Mode of Operations on the Revenue Surveys in Bengal and the North-western Provinces |

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### Contents

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### Other editions - View all

A Manual of Surveying for India, Detailing the Mode of Operations on the ... Ralph Smyth No preview available - 2015 |

### Common terms and phrases

accuracy acres adjustment altitude Ameens angular axis azimuth Beam Compass Bearing beegah bisect boundary bubble centre chord circle clamp collimation column compasses computation construction correct deducted degrees describe difference direction distance divided draw East edge error feet field Field-book figure fixed given ground half height horizontal inches instrument intersection Khusrah latitude length limb Logarithm longitude main circuit mark means measured meridian method miles North object observed angle obtain offsets operations parallax parallel parallelogram Pergunnah perpendicular plane plate plotting polygon position primary divisions Prob protractor radius Ray Trace Revenue Survey rhombus right angles right ascension right line screw sextant side Sine South products square square miles staff Station lines subtract Surveyor Table taken talc tangent telescope Theo Theodolite tion triangle Trigonometrical Survey tube vernier vernier scale vertical vertical circle village wires zero

### Popular passages

Page 7 - Things which are equal to the same thing are equal to one another. 2. If equals be added to equals the wholes are equal. 3. If equals be taken from equals the remainders are equal. 4. If equals be added to unequals the wholes are unequal. 5. If equals be taken from unequals the remainders are unequal. 6. Things which are double of the same are equal to one another.

Page 2 - But when a straight line standing upon another straight line makes the adjacent angles equal to one another, each of the angles is a right angle : (Ю.

Page 14 - 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 12 - F, which is the common vertex of the triangles: that is », together with four right angles. Therefore all the angles of the figure, together with four right angles are equal to twice as many right angles as the figure has sides.

Page 240 - Upon the same base, and on the same side of it, there cannot be two triangles that have their sides which are terminated in one extremity of the base equal to one another, and likewise those which are terminated in the other extremity.

Page 2 - When several angles are at one point B, any one of them is expressed by three letters, of which the letter that is at the vertex of the angle, that is, at the point in which the straight lines that contain the angle meet one another, is put between the other two letters, and one of these two...

Page 4 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.

Page 273 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.

Page 149 - ... to make the objects appear on the other wire ; if the contact still remains perfect, the axis of the telescope is in proper adjustment ; if not, it must be altered by moving the two screws which fasten, to the up-and-down piece, the collar into which the telescope screws. This adjustment is not very liable to be deranged.

Page 5 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees...