^^^-" ^~-._-~ 



Sr, 



BAIRD &TATLOCK: (LONDON) LTD. 



433 



434 



435 



437 



33 s Gas Regulator, Bi-metallic, as devised by Dr. Roux for accurately adjusting tlu- t<-mj 

 ture of Ovens, Sterilisers, etc. 



No. .. 

 Length 

 Diameter of tube B 



i 

 15 



20 



1 17 



2 



25 

 32 



280 



40 centimetres. 



32 millimetres. 



2 19 



34 s Gas Regulator, Bi-metallic as above but U shape, and mounted on iron plate for fixing to 

 wall or oven. As used in the Pasteur Institute, Paris. 



ABC 



Size of gas inlet C 5 8 12 millimeti. 



Price ..400 6 17 7 17 6 fa, h. 



15 Gas Regulator, spiral form, devised by Dr. Lowry, for maintaining an exact constant 

 temperature in water baths, etc. The spiral is filled with Xylol or Toluol, and the bend 

 at bottom of spiral and upright capillary tube is rilled with mercury. The gas enters by 

 tube A and passes out to burner by tube B. The stopcock F serves for a fine adjustment 

 of the byepass to tube B. 



Size of spiral, 8 in. by 3 in. .. .. .. .. price unfilled, radi 096 



$6 Regulator, as above, but without stopcock and H piece, fitted with platinum wire in bulb 



for electrical regulating . . . . each 096 



V7 Regulator, as above, by Dr. Lowry, but bulb form. Price with byquv* sti>|x-o-k 



as F on Fig. 435 , . . . . . price unfilled, each 076 



1CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS 



