40 



An accurately gauged centring - glass , upon which the divisions of the 

 crossed line are marked from two edges of the slide, is supplied with each of 

 these stages No. 47. (See ,,Zeitschr. f. Instr.-Kde.", vol. XX, 1900, pp. 325327; 

 see also the directions for using the stage.) 



Price: Marks 120. . Code-word : Pareial. 



Case lo conlain stage: Marks 5. . Code- word: Farcidnra. 



Fig. 17. 

 Small Mechanical Stage, No. 46, attached to Stand IV . 



( 2 / 8 Full Size.) 



