SPECIALTIES IN MODERN FORMS OF TRANSIT:--Theodolites for General
Surveying--Railway Work--Exploring 246
CHAPTER VIII.
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 8 / 26 章