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Spirit Levels. 



For the benefit of our patrons we enumerate below the principal Spirit Levels we are prepared to supply 

 at short notice. They are made by us, and are of the same superior quality as those furnished with our instru- 

 ments. In the list below we give length, diameter, and degree of sensitiveness. They are graduated, as a 

 rule, as shown above. Levels different in size from this list can be made to order only, and will be furnished 

 only when order is accompanied with the tube or mounting for -which one is intended, and also stating the 

 kind of instrument it is for, and the degree of sensitiveness desired. We will positively not make any levels 

 ipon written dimensions only, but require the tube to be sent in all cases, as otherwise we will not be respon- 



< . L. Berger & Sons' Quick Leveling Attachment. 



Shown a- applied to Lewis and Transits. 



(Seepage 39 of Manual.) I'l'MM', .$H.OO 



