PLAIN THEODOLITES IN WHICH THE TRANSIT PRINCIPLE IS NOT
EMPLOYED:--The Plain Theodolite--Improved Construction--Everest's
Simple--Adjustments and Examination of Theodolites 267
CHAPTER IX.
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 9 / 26 章