46 



CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



No. 546. 



No. 550. 



No. 552. 



No. 553A. 



546. BALANCE, Torsion, Specific Gravity, enclosed in ground glass and metal case with leveling 

 screws and index. Operates entirely by counterpoise and slide beams, no weight pan or loose 

 weights being necessary. Object pan shaped to hold glass bottle. Slide beam graduated upper 

 part to .01 by .0001, lower part 1.40 to .70 by .01, enabling specific gravities to be read directly 

 to the fourth place. Complete with glass bottle holding lOOee. Sensibility, 2 milligrams. . $55.00 



BALANCES, MISCELLANEOUS 



548. BALANCE, Automatic, with weighing chart having a range of 500 grams by 5 gram divisions. 

 Accurate reading is made possible by the hair line pointer provided. Agate bearings and hard- 

 ened steel pivots throughout, with oil dash pot for regulating the sensibility of the balance. 

 Equipped with a round glass plate and finished in blue enamel. Each 5 gram division is 

 1.635 mm wide 50.00 



550. BALANCE, Automatic, same as No. 548, but with chart having a range of 1500 grams by 5 gram 

 divisions. Each division is .68 mm wide 55.00 



552. BALANCE, Cement Scale, for determining percentage of fineness of cement. Beam graduated on 

 upper side to 16 ounces by % ounce, lower side to 100% by 1%. Should be used in connection 

 with our No. 12124 sieves. Can also be used for dirt in seed, moisture in grain, ores, etc. 

 Complete with brass scoop 12.00 



553A. BALANCE, Cement Scale, for fineness of cement. Capacity 1 pound by 1/10,000 pound divisions 

 12.50 



553B. BALANCE, Cement, same as No. 553A, but with beam graduated to weigh to 500 grams by 1/100 

 gram divisions 12.50 



