BAIRD &.TATLOCK (LONDON) LTD. 



1689 



1689" Balance, Chemical, short beam, of phosphor bronze, knife edges and bearings of agate, 

 to carry 200 grammes, sensibility ^ a milligramme. Length of beam 14 centimetres, 

 mounted on black plate glass sole, in walnut case, glazed, without side doors 



1690 



1690" Balance, Analytical, with rigid brass beam 20 centimetres long, one side of beam gradu- 

 ated and with rider apparatus, agate knife edges and bearings. Load, 200 grammes ; 

 sensibility, 0.5 milligrammes. Case polished and glazed all sides, and with drawer at 

 base for weights, etc. ; levelling screws and plummet 



6 15 



4 10 



CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS- 



333 



