BAIRD &. TATLOCK (LONDON) LTD. 



5252 



5253 



5254 



5255 



5252 T Supplementary Apparatus required for use with Leppmann's conical capillary in addi- 

 tion to Electrometer Model III., and capable of holding acid cell and the electrometer 

 tube A. Price complete . . . . . . . . . . . . ..230 



5253 T Horizontal Capillary Electrometer, after H. Sand, as devised for the rapid electrical 

 analytical separation of metals. Stand is inclinable by means of screw, and a milk 

 glass scale thermometer is fitted to the glass part, and spare bulb is added for mercury 

 and acid. Price, with lense complete . . . . . . ... . . ..230 



5254 T Electrometer Tube, new form, filled with distilled mercury and pure sulphuric acid. 

 This is exhausted and sealed. Two platinum tubes are sealed into the electrometer 

 tube. The section of the capillary is oval . . . . . . . . ..056 



5255 T Electrometer Tube, after Ostwald Luther. The filling and arrangements of this tube is 

 similar to the preceding one. The other part is connected by means of a bulb shape 

 tube, whereby the overflow, on account of the changing of height of the mercury, in the 

 capillary is facilitated. On the side of the capillary, which is usually turned to the micro- 

 scope, a cover glass is fitted so that the scale is easily read. Price as figured . . . . 060 





5256 Platinum Electrodes, complete as figured. 



A 

 Price . . 4/- 



A5256 Zinc and Copper Electrode, complete as figured 



B 

 2/6 



A5256 



C 



3/3 



each. 



per pair 016 



(As there are many patterns of the above electrodes, we have only figured a 

 few, but will be pleased to manufacture any other form.) 



ICHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



953 



