6f best quality, and the battery a ivlial.lr dry one. The whole instnini.-iit i, ,-M.,,n,-lle,l whit,- 

 ami silver, the numbers on the plugs ;ui<l face being relieved with gold. It i, v, i v .iilM.iiitully built 

 on a cast-iron base and is provided with a handle lor carrying about when ,,.-, , 



For opsonic incubator work the plugs arc numbered trum 



ill)' K't'vhnarrl Timvllll'll fnr tlw^c Illmru tc oltn ,..,! I 



1 to J ,,( I),, 



|,i ,,1,,..! 





tin- i I'- k .i|>|>riiv 



ll.llt.l. t IIOIII II,. Ml. ill ll.lll'l. 



321" Price fitted with twenty pings, bell and battciy 



322^ 



without bell or battery 



220 



12 



For working this clock in conjunction with (lie opsonic incubator it m.u I"- desirable (or two workers to 



use the same timing clock with perhaps the same or two separate incubators. To meet this .1 ke\ U,.ir.l ..nlv i-, 

 supplied, lilted with plu^s numbered i to 20, this is mounted on a woe d b.i-.e. t!:,- pln v . I , ,,,1; en.un. !:. 1 black. 

 Ilie dilli Tence in colour will obviate any confusion in so usinj. the clock. 



323 s Price of keyboard and pings 



7 6 



vv 



1 



V BODY 

 FULL SIZE 



Automatic Gas Regulator as fitted to Autoclaves Nos. .^.5. 32 S. $ \i and ; 1 1 . 

 See instructions below. 



INSTRUCTIONS FOR FIXING AND WORKING AUTOCLAVES WITH AUTOMATIC GAS REGULATOR. 



The Autoclaves are sent out complete with the gas-regulating gauge (r.) in position. 



When fixing up place valve body (v) in seating after carefully cleaning both, fix lever (L) by -cicw r-in irj, 

 and lastly put on weight (w), which is adjusted to allow valve to blow oft at pressure indicate) 

 tiung from the corresponding marks. 



The gas inlet (A) must be connected to gas supply by means of rubber tubing. A second pic. 

 taken from (B) to (c), which leads to the gas burner. 



The part (D) must then be turned round so as to set the red index pointer on front of gnu*.- 

 temperature at which it is desired to work. The gauge will then regulate the gas supply to burner so as i 

 keep interior of autoclave about this temperature. 



CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



