104 



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



Nos. 1722-4. No. 1728. 



No. 1732. 



No. 1734. 



1720. 



1722. 

 1724. 

 1725. 

 1728. 



1730. 



1732. 

 1734. 

 1736. 



1737. 



1740. 

 1742. 



1744. 



No. 1740. No. 1736. No. 1742. No. 1744, 



BOTTLES, Show, Inverted, for storing and exhibiting sample grains, chemicals, etc. 



1 



7% 

 2% 



.45 



2 

 9 



3% 

 .60 



4 



11 



4% 



1.10 



Capacity, pints % 



Height, inches 3% 4% 6 



Diameter, inches 1 V-: 2 2% 



Each $0.25 .30 .35 



BOTTLES, Specific Gravity, unadjusted, with perforated stopper. 



Capacity, approx., cc , 10 25 50 



Each .55 .65 .90 



BOTTLES, Specific Gravity, accurately adjusted at 20 C., with perforated stopper. 



Capacity, ce 10 25 50 



Each 1.25 1.45 1.80 



BOTTLES, Specific Gravity, same as No. 1724, in tin case with counterpoise. 



Capacity, cc 10 25 50 



Each 2.50 2.75 3.25 



BOTTLES, Specific Gravity, Boot's, double walled, with vacuum, maintaining constant 

 perature inside. With perforated stopper and ground cap. 



Capacity, cc 25 



Each : 4.00 



BOTTLES, Specific Gravity. Geissler's, with thermometer reading from 8 to 40C. ii 

 ground in central neck, and cap ground on side neck. 



Capacity, cc 25 50 



Each 4.00 4.50 



8 

 14 



5% 

 2.00 



100 

 1.60 



100 

 2.25 



100 

 4.00 



tem- 



50 

 5.00 



100 

 5.50 



BOTTLE, Specific Gravity, Hogarth's, specially recommended by the United States Bureau of 

 Mines for coal and coke. Widely used for specific gravity of iron ores. Capacity, about 

 100 cc .......................................................................... 2.00 



BOTTLE, Specific Gravity, Hubhard's, for asphalts, bitumens, and dense oils. With glass stop- 

 per concave on under side, with opening 1.6 mm to permit escape of air. Height, 70 mm; 

 diameter, 22 mm; capacity, about 24 cc .............................................. 2.00 



BOTTLE, Specific Gravity, Le Chatelier's, for cement, special form reco'mmended by the United 

 States Bureau of Standards for use in Government Specifications. (See Circular 33 of the 

 United States Bureau of Standards.) Without certificate ........................... 6.00 



BOTTLE, Specific Gravity, same as No. 1736, but standardized by the United States Bureau of 

 Standards, with certificate ........................................................ 8.00 



BOTTLE, Specific Gravity, Nicol's Tube, for liquids .................................. 70 



BOTTLES, Specific Gravity, Regnault's, for liquids, with ground-in stopper. 



Capacity, cc ............................................................. 25 50 



Each ................................................................... 1.50 1.70 



BOTTLES, Specific Gravity, Regnault's, for solids, with ground-in neck and stopper. 



Capacity, cc .............................................................. 25 50 



Each .................................................................... 2.00 2.50 



