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.

CHAPTER XIX.

Chapter 1938 wordsPublic domain

MISCELLANEOUS SURVEYORS' AND ENGINEERS' INSTRUMENTS, APPLIANCES, AND ACCESSORIES:--Cross Staff--Mechanics' Levels--Boning Rods-- Footner's Railway Gauge--Girth Strap for Timber Measurement--Girth Tapes--Timber Marker--Slashing Knife--Bill-Hook--Reconnoitring Glass--Telescope--Sun Spectacles--Whistles--Pioneer Tools--Sketch Block Book--Camera--Geological Tools--Wealemefna--Opisometer-- Boucher's Calculator--Slide Rules--Fuller's Calculator--Engineers' Pocket-Books--Chronometer--Outfits 573

INDEX 601

SURVEYING INSTRUMENTS.