LABORATORY SUPPLIES AND CHEMICALS 



175 



2933 



2934(a) 



2936 



2934 



2933 GAS BURETTES, Hempel's, graduated to 100 cc. in 1/5 cc. mounted 



on heavy iron japanned bases with wooden ipllars, complete, per set. .^ 

 The graduated burette only 



2934 GAS BURETTES, Hempel's, as above, but with plain and 3-way stop- 



cocks in graduated tube, complete, per set 



The graduated burette only 



2934(a) GAS BURETTES, Hempel's arranged for temperature and barometric 



correction, complete as illustrated 



Glass parts only 



2936 GAS BURETTES, Winkler's, measuring tube divided in 1/5 and its lower 

 part in 1/20 cc. 



With fittings and support complete 



The measuring tube and filling tube only 



The measuring tube only 



5.00 

 2.50 



7.50 

 4.50 



17.50 

 12.00 



15.00 



10.00 



6.25 



2942 



2943 



2912 GAS PIPETTE, Hempel's, simple absorption, for liquid reagents, mounted. $ 3.60 



2943 GAS PIPETTE, Hempel's, compound absorption, for liquid reagents, 



mounted .... 5.00 



