BAIRD &1XTLOCK (LONDON) LTD. 



3474A 3474s 



3474 Bunsen Burners, cast rose tops of brass, mounted on iron sole, total height 5j in. 



Diameter of rose top 

 Price 



A 



2 

 2/3 



26/- 



B 



3 in- 

 3/- each. 

 35/- perdoz. 



3475 3475 (Section) 



$475 Dr. Marshall's Patent Bunsen Burners. 



(See Journal of the Society of Chemical Industry, May, 1897.) 

 These burners are manufactured in our own factory. The great advantage is that they have no central gas 



et to become choked up through matter falling down tube, the gas issuing from a hole in brass plug in gas leading 



ube (see section). The regulator is simply a brass stamping, and works beneath base ; in this position it cannot 



j^ecome fixed, as the regulators are apt to do in ordinary bunsens. 



A large number have been supplied to various Universities and Institutions, etc., and have given entire 



,atisfaction, being invariably chosen in preference to the old form. 



Diameter of tube, outside . . . . & \ | f in. 



Price .. .. .. .. 1/4 1/9 2/6 3/6 each. 



15/- 201- 28/- 40/- per doz. 



jCHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS- 



653 



