CENTEAL SCIENTIFIC CO., CHICAGO, U. 8. A. 



311 



HYDROMETERS 

 HYDROMETERS FOR GENERAL USE 



PLAIN HYDROMETER. Regular size, about 12 inches long. Four-ounce size, about 5 inches long. 



THERMO-HYDROMETER. Regular size, about 14 inches long. Four-ounce size, about 7 inches long. 



71)24. 

 7(526. 



7628. 

 7632. 



7634. 

 7636. 

 7640. 



7641. 

 7642. 



HYDROMETERS, Baume, for heavy liquids, highest quality, graduated in 

 about 11 inches. 



No ................................ A B C D E 



Range, degrees Bauine .............. 0-10 10-20 20-30 30-40 40-50 



Each ............................... $2.50 2.50 2.50 2.50 



HYDROMETERS, Bauine, for heavy liquids, highest quality, graduated in 

 about 11 inches. 



No ............................................................. A B C 



Range, degrees Baume .................. . ........................ 0-25 25-50 50-70 



Each ........................................................... 2.00 2.00 2.00 



HYDROMETERS. Baume, for heavy liquids, highest quality, graduated in % divisions. Length 



divisions. Length 



F G 



50-60 60-70 

 2.50 2.50 2.50 

 divisions. Length 



about 11 inches. 

 No. 



Range, degrees Baume 0-35 



Each 



1.65 



B 



35-70 

 1.65 

 in 1 

 .50 

 Length, 



HYDROMETER, Baume, for heavy liquids, medium grade, graduated from to 70 



divisions. Length about 11 inches 



HYDROMETERS, Baume. for light liquids, highest quality, graduated in ifo' divisions, 

 about 11 inches. 



No A B C D E F G H 



Range, degrees Baume 90-80 80-70 70-60 60-50 50-40 40-30 30-20 20-10 



Each 3.30 3.00 2.50 2.50 2.50 2.50 2.50 2.50 



HYDROMETER, Baume, for light liquids, highest quality, graduated from 40 to 10" in %" 



divisions. Length, about 11 inches 1.65 



HYDROMETER, Baume, for light liquids, medium grade, graduated from 100 to 10 in 1 



divisions. Length, about 11 inches 50 



HYDROMETERS, Specific Gravity Scale, standard, for scientific work requiring highest degree 

 of accuracy. Graduated at 60F., in 0.001 divisions; mercury weighted. Length, about 

 inches. Each hydrometer lettered as below 



A 700 to 



B 760 to 



C 820 to 



D . 880 to 



.760 

 .820 

 .880 

 .940 



E 940 to 1.000 



F 1.000 to 1.060 



G 1.060 to 1.120 



H 1.120 to 1.180 



I . 1.180 to 1.240 



K 1.300 to 1.360 



L 1,360 to 1.420 



M 1.420 to 1.480 



N 1.480 to 1.540 



O 1.540 to 1.600 



P 1.600 to 1.660 



Q 1.660 to 1.720 



R 1.720 to 1.780 



S 1.780 to 1.850 



J 1.240 to 1.300 



Set of 19 hydrometers listed above, complete with a special 12-inch floating hydrometer, with 

 thermometer scale in stem reading from 30" to 120F., in 1 graduations. The special hydro- 

 meter is marked with letters indicating which spindle to use. Set complete in wooden 



case 109.00 



HYDROMETERS, single spindles only of No. 7640 each 5.00 



HYDROMETERS, Specific Gravity Scale, for heavy liquids, highest quality, graduated in 0.002 

 divisions. Length, about 11 inches. 



No A B C D E 



Kange 1.000-1.100 1.100-1.200 1.200-1.300 1.300-1.400 1.400-1.500 



Each 3.00 3.00 3.00 3.00 3.00 



No F G H J K 



Range 1.500-1.600 1.600-1.700 1.700-1.800 1.800-1.900 1.900-2.000 



Each 3.00 3.00 3.00 3.50 3.50 



