Summer Surveys: Scholastic Amusements in Civil Engineering [Tools of the Trade]

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Instruments

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Hand Level
The hand level is an instrument convenient for rough work such as is done on reconnaissance expeditions.

Wye Level
A wye level is a compass supplied with a telescope used for measuring both horizontal and vertical angles.

Leveling Rod
The leveling rod is used to measure the vertical distance from the line of sight down to the turning-point or bench-mark.

Pocket Leveling Rod
This canvas leveling rod can be coiled up and carried in a pocket. In use it is fastened to a board with thumb tacks.

Target
The target is moved by the rodman in response to signals from the observer until it accurately coincides with the line of sight.

Catalogs

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American Engineers' & Surveyors' Instruments published by W. & L. E. Gurley, 1884. Pictured on this page spread are transits or levels similar to the ones used by RPI students.

Gurley's Manual of American Engineers' and Surveyors' Instruments, 1909. Shown on this page spread are leveling rods similar to the ones used by RPI students.