144 



No. 1 a. 



is made by C. L. Berger & Sons. 



Patented. 



Transit with Level Attachment to Telescope. 



Price, as ahov< , with cloth finish standards . $121O.OO 



St a iida rds finished like instrument (no clothfinish) . . . extra 



For size and particulars of this instiument, as well as for Extras, see page 1 l-j. 



NOTE. The character of this level attachment combined with the features of the transit, is that of a pivot- 

 level. Its manipulation and use is similar to that described under our Hydrographic-level. The adjustment of 

 the level to the telescope, however, must be made in the manner described on pages 48 and 54, or by means of 

 a collimator. With a level attachment of the above kind, good levdiim can be done, as the power of the 

 tlecopo and the sensitiveness of the spirit-level are equal to that of most Wye-levels. 



Tin- verniers of this instrument can be placed at an angle of 1)0 to line of 

 if so ordered to be made. 



Code AVord. 



Transit No. la, as in cut above with lixrd st:i<li;i wires to telescope, solid 

 silver irraduation to minutes, erecting telescope, stain lards cloth finished, full 



length tripod ItaNani 



For Kxtraa and changes from Balsam see pages ( ,' :tnd F <>f r<miplrtr code at l.:ick . 



