236 



Balances and Sets of Weights. 



No. r.l :.i;7 



51 569. 1 : 8. 



51567. 1 : 6. 



51573. 1 : 9. 



51 571. 1 : 5. 



51.567. Precision Tare Balance (Mach's), for rapid work, Figure, nickelled, with side 

 doors, on black plate glass base (Chemiker-Ztg. 25, 1901, p. 1139, and 27, 1903, p. 249) 



The balance is set up so that the balance-beam is turned towards the viewer, the one weighing 

 pan being accessible for both hands. This balance is very convenient, especially when a large series 

 of samples of the same weight have to be weighed and the weight has not often to be changed. If 

 specially desired, the balance is also supplied set up in the ordinary manner. 



51.568. Set of Weights for above, 500, 200, 100, 50 grams, for placing inside the case . . 



Mohr's Pillar Tare Balance, Figure 51,569, beam working in the pillar, sensitivity 50 ing 

 for 1 kg load; constructed entirely of brass. 



List No. 51,569 51,570 

 To carry 0.5 1 



(a) Without box or base .... 1. 5. 1. 8. 



(b) Polished box with 2 drawers 0. 11. 0. 11. 



Tare Balance, Figure 51,571, with pierced gunmetal beam, prismatic axes, resting on 

 3 agate planes, with elegant brass pillar; the pointer plays on an ivory scale. 



List No. 51,571 51,572 

 To carry 1 3 kg 



On Mahogany box with 2 drawers 2. 5. 2. 10. 



51,573. Single Arm Balance ( \\Vst pual's) for specific gravity determinations, Figure, 



with adjustable, lacquered brass stand 



With this balance the specific gravity of liquids can be determined to 4 \>\: s of .l.vimaK The 



followiii}: pertain l> the balance: 1 glass plummet, 1 Koimann flask with tlicnimmrtrr stopper, 

 1 counterpoise, 8 ridcre, 1 pair forceps and 2 platinum wires, cii.se and instructions. 





 6. 



s. d. 

 0. 



0. 18. 



1. 6. 



M, 3>7. 

 7:,7. L>li. 



