SURVEYORS INSTRUMENTS, COMPASSES, ETC. 7 



No. 



138 Fig. 84, pocket compass, as last, in silver, 



and morocco case, - ... 12.00 



139 Fig. 85, pocket compasses in mahogany cases, 



with stop, five sizes from two to four inches, 



$1.25, $1.50, $2.00, 2.50, and 3.00 



140 Fig. 86, mariners' compasses, with wood bowl 



and brass gimbals, - - - - - 2.50 



141 Fig. 86, mariners' compasses with brass box 



and gimbals, - - - 5.00 



142 Fig. 87, boat compass in brass, - $2.25 to 2.75 



143 Fig. 88, azimuth compass, - - 8 to 25.00 



144 Fig. 89, prismatic compass, - 16 and 20.00 



145 Fig. 90, plane table, - 20 to 35.00 



146 Fig. 91, surveyors' cross, - 3 to 6.00 



147 Fig. 92, surveyors' compass, four inch needle, 14.00 



148 Fig. 92, " " five " $20 to 22.50 



149 Fig. 92, " " six " 28 to 32.00 



150 Fig. 92, " " with Nonius, five 



inch needle, - - *'.- v 30.00 



151 Fig. 92, surveyors' compass, with Nonius, six 



inch needle, - - $35 to 42.00 



152 Fig. 93, portable surveyor's compass, - 5.00 



153 Fig. 94, graphometer, 8 inch, $15; 12 inch, 30.00 



154 Fig. 95, quadrants, with ebony frames, in 



cases, ^ ; - $ 14 to 18.00 



155 Fig. 96, sextants, best double frame, 100 to 120.0 J 



156 Sextants, single frame, - 50 to 80.03 



157 Sextants, ebony frame, - 35.00 



158 Fig. 97, portable box sextant, - 30 to 40.00 



159 Fig. 98, reflecting circle, - 150 to 200.00 



160 Fig. 99, theodolite, with horizontal and ver- 



tical movements, and tangent screw, five 



and six inch, - - $100 to 120.00 



161 Pike's theodolite, improved, with 9 inch plate, 



6 inch compass, 15 inch telescope, forming 



a universal instrument, - - 130.00 



162 Fig. 99, theodolite, with silver arch, 5 inch, 



163 Fig. 100, spirit level tubes, 25 cts. to 0.50 



164 Fig. 101, spirit levels, mounted in brass, 3 to 



12 inches, - - - $1.25 to $6.00 



165 Fig. 102, spirit levels, mounted in mahog my, 



with brass plate, - >-;.< 1.00 



