346 BEXJ. PIKE S, JR., DESCRIPTIVE CATALOGUE. 



With sights to the compass-box, plumb-bob, and mag- 

 nifying glass for reading the divisions more closely. 



Price $135.00. 



Also an instrument of the same construction, having the 

 same size telescope and level, but with plate 7 inches 

 diameter, vernier plate 6 inches, compass-box 4 inches, 

 vertical arch, 6^ inches. Price $125.00. 



The same instruments, with the tangent-screw and rack- 

 work motions omitted. Price $100.00. 



Fig. 784. 



Transit Theodolite. (Fig. 784.) This instrument is 

 constructed, in most of its parts, as the last described; 

 the telescope and level are of the same size, and having 

 the glasses of the best quality ; the tripod-stand, parallel 

 plates, sockets, clamps, and tangent-screws, are the same ; 



