BAIRD &TATLOCK (LONDON) LTD. 



1748 U Balance (new pattern), to carry 10 grammes, sensibility ^, milligramme with hardened 

 steel knife edges and bearings ; length of beam 5 in., pans 2 in. diameter, size of portable 

 box for the balance, 5 by 6 by 7 in. 



In this instrument an arrangement is provided, whereby the pointer gives twice as large a deflection with 

 the same swing of beam, and over-all dimensions as other balances of similar pattern. The balance can be used 

 as a portable or a laboratory instrument for assay or general chemical work. It is fitted with pan rests and lifter 

 for beam, and is provided with adjustment for sensibility. Bearings are of best quality cast steel, hardened, 

 and edges ground ; they are of inverted V type so as to avoid dust settling on the edges or in the groove. The 

 l>ase is of solid brass, giving a low centre of gravity, and the whole instrument is of solid and compact construction, 

 able to stand any ordinary hard usage. Gilt and lacquered throughout. Balance is supplied in box with parts 

 fitted for portability, but it can be supplied also in glass case at an extra charge. 



17 10 



1749 



1750 



1749 



1750 



Balance, Oertling's No. 15 Portable Assay, steel knife edges on agate planes, to carry 

 2 grammes in each pan, and turn distinctly with o.i milligramme. Outside dimensions 

 of case, 8 in. square by 2 in. deep 



Balance, Oertling's No. 16 Portable Assay, to carry 2 grammes in each pan, and turn 

 with o.i milligramme ; fitted with double rider-slide, levels, and three levelling screws, 

 steel knife edges on agate planes ; outside dimensions of case, 8 in. square by 2 in. deep 



Leather Case, with shoulder strap, to carry above balance . . . . . . extra 



7 10 



11 

 1 10 



CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



: ^L 



359 



