LABORATORY SUPPLIES AND CHEMICALS 



101 



2301 



2301 CLAMP, Burette, for two Burettes, designed by Prof. Lincoln. Will fit 

 any rod up to J^-inch diameter. Burettes are held perpendicu- 

 lar and are easily removed; very convenient and rigid ....$0.75 



2301a CLAMP, Burette, for two burettes. The jaws are rubber covered, and 



close by means of coiled springs 75 



2301b 



2301c 



2301b CLAMP, Burette. Nickel plated, can be screwed into wall $0.40 



2301c CLAMP, Burette. Nickel plated, for attaching to retort stands.. .50 



2302 



2303 



2302 CLAMP, Burette, double, brass, for two burettes $2.00 



2303 CLAMP, Burtte, Allihn's. For two burettes with coiled springs, closing 



the clamps automatically . 3.00 



2304 



2306 



2307 



PINCHCOCKS FOR RUBBER TUBING 

 2304 CLAMP, Pinchcock, Mohr's, for burettes, etc., strong spring. 



Size Small. Med. Large. 



Each $0.10 $0.15 $0.20 



2306 CLAMP, Pinchcock, Screw, Bunsen's, for rubber tubing, with screw on each 



side $0.50 



2307 CLAMP, Pinchcock, Lever Screw Compressors, nickel plated; in two sizes. 



Size Small. Large. 



Each r- $ 0>40 $0 . 75 



