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



145 



f 



l.\Ti:UNATIO\ \l. MIITKK 



STKM 







No. 2807. 



2807. CHART, Metric, showing in full size and in perspective where necessary the nnits of the interna- 



tional metric system, with units of the English system for comparison. Tables showing the de- 

 rivation of the names of the metric units and their abbreviations, together with tables of metric 

 and English equivalents are included. The chart is 25 by 41 inches, mounted on cloth back, 

 with common rollers i $2.00 



2808. CHART, Spectrum, showing 6 spectrum and 12 intermediate colors with two tints and two shades 



of each. A chart of approximately complementary colors, one showing the relative value of 

 spectrum colors as obtained by a prism, and a set of grays, showing eight tones are included. 



2.M 



2812. CHART, Spectrum, mounted on linen back with common rollers and containing the following 

 spectra (size of each spectrum 5.5 cm wide, 52 cm long) : K, Rb, Cs, Tl, Na, Li, Ca, Sr, Ba. 

 5.50 



2814. CHART, Spectrum, same as No. 2812, with the following spectra: In, C, Bo, Mn, Pb, Cu, Co, 

 Ni, Fe 5.50 



No. 2824. 



No. 2818. No. 2820. 



No. 2830 



No. 2828. 



2816. 

 2818. 

 2820. 



2822. 

 2824. 



CHEESE-CLOTH Per yard 



CHIMNEYS, Students' Lamp Per dozen 



CHIMNEYS, Argand, straight, 2x7 inches Per dozen 



CLAY PIPES, see Pipes, Clay. 

 CLOTH, Emery, see Emery Cloth. 



CHISEL, Cold, length 6 inches, width of blade %-inch 



CHISELS, Gouge, cast steel, with wood handle. 



"Width of blade, inches 

 Total length, inches 

 Each 



2826. CHISELS, Plain, cast steel, with wood handle. 



No 



Width of blade, inches 



Total length, inches 



Each . 



13 

 90 



13 

 .80 



.12 



1.80 

 1.20 



.18 



B 

 1 



14 

 1.10 



B 



1 



14 

 1.10 



2828. 

 2830. 



CHLORINE ABSORPTION APPARATUS, Bnnsen-Fresenius, with flask ground on ...... 1.40 



CHLORINE TUBE, 2x100 cm, for showing decomposition of water by chlorine ............ 80 



