BAIRD &TATLOCK (LONDON) LTD. 



3685 



H$5 S Opacity Meter, designed by Mr. Chapman Jones 



Description on application. 



Filter Pumps or Aspirators. 





5 15 



3691 



3686 3688 3689 3690 



86 Filter Pump, glass, Arzberger & Zulkowsky's, on board, with two stopcocks 



87 Filter Pump, glass, Bunsen's, on polished board, one stopcock 



: 88 Filter Pump, or aspirator, of glass, giving with high-water pressure an almost perfect 



vacuum 



89 Filter Pump, or aspirator, of brass, giving almost similar results, all carefully tested 



90 Filter Pump, brass, without gauge. . 



91 Filter Pump, brass, with gauge 



92 s Filter Pump, brass, Korting's make, as Fig. 3693 but without gauge 



12 6 

 080 



030 

 043 

 086 

 18 6 

 15 



CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



701 



