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



313 



No. 7730. 



No. 7732. 



No. 7738. 



7C96. H Y DROME TEE, Battery, Specific Gravity Scale, medium grade, flat body, graduated from 1.050 

 to 1.300 in 0.005 divisions. Length, 7 inches $0.90 



7698. HYDROMETER, Battery Syringe or Chargometer, Specific Gravity Scale, ordinary grade, grad- 

 uated from 1.1 to 1.3 in 0.005 divisions. Length of hydrometer, 3% inches; length over all, 

 11% inches. Complete with good quality rubber bulb and glass syringe with unbreakable 

 flexible rubber tip 1.00 



7099. HYDROMETER only for No. 7698. Length, 3% inches 45 



7702. HYDROMETER. Beer, Balling Scale, highest quality with enclosed thermometer, graduated 



from to 24 in ^ divisions. Length, about 17 inches 5.80 



HYDROMETER, Benzine, see Hydrometer, Gasoline. 



7704. HYDROMETER, Calcium Chloride Salometer, highest quality, for specific gravity of brine. 



Graduated from to 120* in 1 divisions. Length, about 11 inches 1.65 



HYDROMETERS, Condensed Milk, see Nos. 7744 and 7746. 



7708. HYDROMETERS, Creosote, Specific Gravity Scale, highest quality, according to the specifica- 

 tions of the American Society for Testing Materials. Graduated to read at 15.5C. in 0.001 

 divisions. Length, 9 inches. 



No A B 



Range, gravity .*. 1.000-1.080 1.070-1.150 



Each '. 3.65 3.65 



7651 B. HYDROMETER, Ether, Specific Gravity Scale, highest quality, graduated from 0.700 to 0.800 

 in 0.002 divisions. Length, about 11 inches 2.50 



7714. HYDROMETER. Gasoline. Baume Scale, medium grade, graduated from 40 to 90 in 1 divi- 

 sions. Length, about 11 inches 50 



7716. HYDROMETER, Gasoline, Baume Scale, medium grade, graduated from 40 to 90 in 1 divi- 

 sions. Length, 5 inches. Complete with test jar in wooden case 50 



For other GASOLINE HYDROMETERS, see Hydrometers, Oil. 



7720. HYDROMETER, Glue, Baume Scale, highest quality, graduated from to 35 in % divisions, 

 for use at 150F. Length, about 11 inches 1.65 



7724. HYDROMETER, Lime Sulphur (Li-Sul-Sprayometer) , Baume and Specific Gravity Scales, me- 

 dium grade, New York and Pennsylvania pattern, for testing lime-sulphur wash used in spray- 

 ing. Graduated from to 38 Baume, in % divisions, and from 1.000 to 1.350 specific 

 gravity in 0.005 divisions 75 



7726. HYDROMETER, Lime Sulphur, same as No. 7724, complete with 12x2-inch glass jar in wooden 

 ease with directions for use 1.00 



7730. HYDROMETER, Milk, Lactometer Scale, ordinary grade, graduated from to 120 in 2 divi- 

 sions. Length, about 11 inches .40 



7732. HYDROMETER, Milk, Quevenne's Lactodensimeter, medium grade, with enclosed thermometer, 

 graduated from 14 to 42 (1.014 to 1.042 specific gravity) in 1 divisions. Length, about 13 

 inches . . 3.50 



7734. HYDROMETER, Milk, Quevenne's Lactodensimeter, same as No. 7732, but without enclosed ther- 

 mometer .60 



7736. HYDROMETER. Milk, Spence's Lactometer, New York State Dairy Commission Pattern, high- 

 est quality, with enclosed thermometer, graduated from to 120 in 2 divisions. Length, 

 about 12 inches. With correction scale and certificate 5.80 



7738. HYDROMETER, Milk, Spence's Lactometer, New York State Dairy Commission Pattern, medium 

 grade, with enclosed thermometer, graduated from to 120 in 2 divisions. Length, about 

 12 inches. With correction scale 3.50 



7740. HYDROMETER, Milk, Lactometer, TTnited States Department of Agriculture Dairy Division Pat- 

 tern, Specific Gravity Scale, highest quality, graduated from 24 to 37 (1.024 to 1.037 specific 

 gravity) in J4 divisions. (See Bulletin 134 of the Bureau of Animal Industry, United States 

 Department of Agriculture, page 16.) 5.00 



