BAIRD ^TXTLOCK (LONDON) LTD. 



1716 



1716' Balance, Oertling's No. 3, with 6i-in. triangular beam, to carry 500 grammes in each 

 pan and turn with o.i milligramme ; agate knife edges working on agate planes : pan 

 supports and rider-slide which traverses the entire length of the beam ; polished mahogany 

 case with drawers and doors at each end as illustration ; counterpoised weights fitted to 

 front slide 21 







1717 Balance, as above, with plate-glass fitted to bottom of case 



23 2 



jCHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



