CHAPTER XVI.

INSTRUMENTS FOR MEASURING LAND AND CIVIL WORKS DIRECTLY:--Chains--

Various Tellers--Standard Chains--Arrows--Drop Arrows--Vice for

Adjusting Chain--Caink's Rule for Inclines--Steel Bands--Wire Land

Measures--Linen Tapes--Offset Rods--Pine Standard Rods--Rods with

Iron Core--Beam Compass Rods--Coincidence Measurements--

Compensated Rods--Base Line Apparatus--Coast Survey Lines--

Perambulator--Pedometer--Passometer--Sounding Chains--Sounding

Lines--Telemeters--Hand Rods--Rules 490

Surveying and Levelling Instruments, Theoretically and Practically Described. For construction, qualities, selection, preservation, adjustments, and uses; with other apparatus and appliances used by civil engineers and surveyors in the field. · 第 16 / 26 章