.- . 



455 



155 Gas Burner for Incubators, on stand to raise or lower, stopcock to each ict and mi. .1 



chimney 



i 

 6/6 



4 

 10/6 16/- 21 / 



t56 Extra mica for chimneys for above 



eavli. 1/1 ; perdoz. 12 



457 458 



Ring Burners. 



Inside diameter of ring . . . . . . 3 4 



57 With stopcock and boss to fix to upright. Price 6/- 6/6 



58 With bosshead but without stopcock. Price 4/9 5/6 



459 



6f in 



9/- ea,-h. 



59 Argand Burner, with stopcock on broad base, with pale blue glass chimney and shade, for 



microscope work .. .. .. .. .. .. .. -ai h 13 6 



59A Extra glass chimneys, pale blue 



. per doz. 060 



iO Incandescent Burner, with byepass, on broad base, with chimney and shade, and OIK 



mantle, similar pattern to Fig. 459 . . . each 12 6 



jCHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS 



lit, 



99 



