8 BENJ. PIKE'S, JR., PRICE CATALOGUE. 



No. 



166 Fig. 103, spirit levels, 27 inch, in mahogany, 



with plumb level, 2.00 



167 Fig. 103, spirit levels, with plumb levels, 



brass bound, - 3.00 



168 Spirit levels, ir. brass, with sights, 6 inch, - 6.00 



" " 8 inch, - 8.00 



169 Fig. 104, spirit levels, with telescope, 12.00 



170 Fig. 105, engineer's Y spirit level, 20 inch, 80 to 100.00 



171 Fig. 105, " " with compass, 100.00 



172 Fig. 106, Trough ton's level, - 100.00 



173 Fig. 100, spirit level tubes, ground inside, for 



surveying instruments, - $1.50 to 3.00 



174 Fig. 107, levelling staves, 10 to 12ft. long, $5 to 8.00 



175 Fig. 107, portable levelling staves, - 5 to 8.00 



176 Fig. 108, level for slopes, or anglemeter, 6 to 8.00 



177 Miner's level, compass, and anglemeter, - 6.00 



178 Fig. 109, dipping needle, - - - 40 to 50.00 



179 Fig, 110, goneometer, for measuring the an- 



gles of crystals, - - $3 to 5.00 



180 Fig. Ill, Wollaston's reflecting goniometer, 20.00 



181 Fig. 112, artificial horizon, roof kind, $20 to 25.00 



182 Fig. 114, artificial horizon, circular plate and 



level, $6 to 12.00 



ASTRONOMICAL INSTRUMENTS. 



S3 Fig. 115, eighteen inch globes on best high 



mahogany frames, the pair, - - $78.00 



i 34 Fig. 115, eighteen inch globes on best high 



mahogany frames, with compasses, - 85.00 



185 Fig. 115, thirteen inch globes on high maho- 



gany frames, the pair, - - 35.00 



186 Fig. 115, thirteen inch globes on high maho- 



gany frames, with compasses, - 40.00 



187 Fig. 1 16, thirteen inch globes on low frames, 



the pair. - - - 25.00 



