No. .-,l.-iso. 



Precision Balances, Tare Balances, Specific Gravity Balances. 



237 



51 576. 1 : 6. 



51 578. 1 : 5. 



51.574. Specific Gravity Balance (Mohr's), Figure, with arrestable stand and pans for 

 ordinary weighings, of lacquered brass with accessories illustrated 



This balarce serves for determining the specific gravity of liquids and solids to 4 decimal places. 

 All parts can be placed in the lock-up drawer of the support. 



51.575. - - idem, with nickelled brass parts 



51.576. Specific Gravity Balance, Figure, both arms graduated, with adjustable stand 

 with support and with spring arrestment, the latter being actuated by lightly pressing 

 the knob a. The central bearing and arrestment are of agate. The lock-up drawer 

 is arranged to take the entire balance and the lower base has levelling screws. 



Price, including accessories illustrated, balance lacquered 



51.577. - - idem, the balance nickelled 



51.578. Outfit for Specific Gravity Determinations on liquids and solids, for analytical balances 

 Nos. 51,519, 51,520 and 51,523, 51,524, Figure, owing to the height of the pans this 

 outfit can only be used for the balances to carry 200 grams and 1 kg 



1 Reimann Thermometer, 15 g weight, displaces 5 g distilled water at 15 C. (4 S. 3d.), 1 ad- 

 justable stage for the glass jar (M. T., p. 103 [3 S.]), 1 counterpoise each of 10 and 5 grams each 6 d. 

 (1 S.), 1 glass plummet (9 d.). 



51.579. Hydrometer (Eeimann's), Figs. A and B, for determining the specific gravity of 

 liquids, with a 1-gram patent body and a pan for use as substitution balance, resting 

 in polished box, with 2 glass jars 



5.1 ,580. --idem, in glass case 



s. d. 

 1.15. 



1.18. 



2. 0. 

 2. 3. 



0. 9. 



1.10. 

 2. 5. 



Cl. 200, 198, 199, 

 5497, ;,4'.IL'. 



