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



507 



No. F3355. 



No. 14030. 



No. 3102. 



TUBES, Culture, see Test Tubes. 



TUBES, Drying, see Calcium Chloride Tubes. 



TUBES, Fermentation, see Fermentation Tubes. 



TUBES, Filtering, see Filter Tubes. 



TUBES, Fractional Distillation, see Distilling Tubes. 



TUBES, Fused Silica, see Combustion Tubes. 



TUBES, Geissler, see Catalog F of Physical Apparatus. 



TUBE, Hortvet, see Sugar Analysis Apparatus. 



TUBES, Melting Point, see Melting Point Tubes. 



TUBES, Phosphorus, see Centrifuge Accessories. 



TUBES, Potato Culture, see Test Tubes. 



TUBES, Pyrometer, see Pyrometer Protection Tubes. 



TUBES, Transparent Quartz, see Combustion Tubes. 



TUBES, SoU Sampling, see Soil Analysis Apparatus. 



TUBES, Specimen, see Test Tubes. 



TUBES, Test, see Test Tubes. 



TUBES, Vacuum or Dewar, see Vacuum Tubes. 



TUBES, Water Analysis Color, sec Color Tubes. 



TUBES, X Ray, demonstration form, see Catalog F of Physical Apparatus. 



TUBING, Flexible Metallic, see Rubber Tubing. 



TUBING, Rubber, see Rubber Tubing. 



TUBING, SILICA, see Silica Tubing. 



TUMBLERS, Glass, -with lip, see Beakers. 



F3355. TUMBLERS, Glass, Heavy, capacity, about 250 cc; diameter at top, 60 to 65 mm. each $0.06 



per dozen .60 

 TUMBLERS, Jelly, see Jars. 



14030. TURBIDIMETER, Jackson's, for determining sulphates in water; consisting of a graduated tube 



22 cm long, with metal ease to exclude the light, and a support for tube and candle . . . 14.00 



14031. CANDLES for use with No. 14030. . per dozen 3.00 



14032. GRADUATED TUBES, extra, for No. 14030. 



No 



Length, cm 



Each . 



A 



22 



2.50 



B 



75 

 5.00 



14033. BRASS EXTENSION for use with No. 14030 when using long graduated tubes 4.50 



3102. TURBIDIMETER, United States Geological Survey Standard, inade of aluminum, 8 inches long, 

 graduated in parts per million. To one end is attached a tape 4 feet long, similarly graduated. 

 Into the other end is fastened a nickel-plated brass screw eye containing a piece of rolled 

 platinum wire to be viewed. The depth of its disappearance to the eye indicates the turbidity. 

 Complete in case. (See Bulletin No. 151 of the United States Geological Survey) 7.50 



TWINE, Asbestos, see No. 312. 

 14038. TWINE, Cotton, 3-ply Per ball .16 



14040. TWINE, Linen, No. 9, white Per ball 



.45 



