LIST OF MAPS, DIAGRAMS, AND 
ILLUSTRATIONS. 
Prismatic Compass .......... 
Pocket Compass ....... 
Etypsometrical Apparatus . . . . . . . 
Sextant . . . . . 
Box Sextant ........... 
Transit Theodolite ...... ... 
Diagram showing Method of Adjusting Theodolite for Collimation . 
Diagrams showing Appearance of Sun’s Limbs in different Eyepieces of 
Theodolite .......... 
Transit Theodolite with Level on Vernier Arm 
Tacheometer ........... 
Diagram Illustrating Principle of Tacheometer Surveying 
Measuring Staves with Sighting Arrangements for use in Tacheometer 
Surveying .......... 
Plane Table .......... 
Diagrams Illustrating Plane Trigonometry, and its Application to 
Surveying .......... 
Diagram showing Method of Finding true Meridian by the Sun, without 
Instruments ...... ... 
Diagram showing Method of Setting-off a Right Angle from any point 
by means of a Rope ......... 
Diagram showing Method of Obtaining the Distance of an Inaccessible 
Object with a Measuring Line ....... 
Diagrams to Illustrate Method of-Constructing Map Projections 
Diagrams showing how Longitude is Corrected in Surveying by Latitudes 
and Azimuths .......... 
Map Illustrating Route Surveying with Prismatic Compass, Boiling-Point 
Thermometer, and Aneroid ....... 
Chart of the World, with Lines of Equal Magnetic Variation . 
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