Tables of Logarithms of Numbers and of Sines and Tangents for Every Ten Seconds of the Quadrant: With Other Useful Tables |
From inside the book
Results 1-5 of 21
Page 6
... Field Trigonometrical Surveys .. Variation of the Needle .. Leveling Topographical Maps - Setting out Rail - way Curves .. Surveying Harbors The Plane Table .... · To determine the Depth of Water .... Definitions , & c . Plane Sailing ...
... Field Trigonometrical Surveys .. Variation of the Needle .. Leveling Topographical Maps - Setting out Rail - way Curves .. Surveying Harbors The Plane Table .... · To determine the Depth of Water .... Definitions , & c . Plane Sailing ...
Page 93
... field of view . The center of the field is in- dicated by two wires placed in the focus of the object - glass of the telescope , one wire being vertical and the other SURVEYING . 93.
... field of view . The center of the field is in- dicated by two wires placed in the focus of the object - glass of the telescope , one wire being vertical and the other SURVEYING . 93.
Page 103
... field is usually expressed in acres , roods , and perches , designated by the letters A. , R. , P. When the lengths of the bounding lines of a field are given in chains and links , the area is obtained in square chains and square links ...
... field is usually expressed in acres , roods , and perches , designated by the letters A. , R. , P. When the lengths of the bounding lines of a field are given in chains and links , the area is obtained in square chains and square links ...
Page 104
... field , and go entirely around the field , measuring the length of each of the sides with a chain , and their bearings with a compass . Plotting a Survey . When a field has been surveyed , it is easy to draw a plan of it on paper . For ...
... field , and go entirely around the field , measuring the length of each of the sides with a chain , and their bearings with a compass . Plotting a Survey . When a field has been surveyed , it is easy to draw a plan of it on paper . For ...
Page 105
... field , the sides may be laid down from the angles which they make with each other , instead of the angles which they make with the meridian . Reverse one of the bearings , if necessary , so that both bearings may run from the same ...
... field , the sides may be laid down from the angles which they make with each other , instead of the angles which they make with the meridian . Reverse one of the bearings , if necessary , so that both bearings may run from the same ...
Other editions - View all
Common terms and phrases
9 I I altitude angle of elevation arithm base chains circle Co-sine Co-tangent complement computed correction cosecant course and distance decimal diameter diff difference of latitude difference of longitude Dist divided equal equator fifth figure find the angles find the area find the Logarithm frustum given number given the angle height Hence horizontal plane hypothenuse inches latitude and departure length LO LO LO logarithmic sine measured meridian middle latitude miles minutes Multiply natural number nautical miles parallel parallel sailing perpendicular places plane sailing Prob Prop proportional quadrant radius Required the logarithmic right-angled spherical triangle right-angled triangle Sandy Hook secant ship sails side AC spherical triangle ABC SPHERICAL TRIGONOMETRY station subtract surface tabular number tang Tangent telescope theodolite Theorem vernier vertical Vulgar Fraction wyll yards zoids ΙΙ ΙΟ
Popular passages
Page 20 - The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc.
Page 163 - In any spherical triangle, the sines of the sides are proportional to the sines of the opposite angles. In the case of right-angled spherical triangles, this proposition has already been demonstrated.
Page 69 - FIND the area of the sector having the same arc with the segment, by the last problem. Find also the area of the triangle, formed by the chord of the segment and the two radii of the sector.
Page 54 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Page 69 - TO THE NUMBER OF DEGREES IN THE ARC ; So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.
Page 73 - To find the solidity of a pyramid. RULE. Multiply the area of the base by one third of the altitude.
Page vi - The characteristic of the logarithm of ANY NUMBER GREATER THAN UNITY, is one less than the number of integral figures in the given number.
Page 184 - If a heavy sphere, whose diameter is 4 inches, be let fall into a conical glass, full of water, whose diameter is 5, and altitude 6 inches ; it is required to determine how much water will run over ? AHS.