CENTRAL SCIENTIFIC CO., CHICAGO, TT. 8. A. 



463 



No. 12796. 



SPRAYING MATERIAL, see Catalog A of Agricultural Apparatus. 

 SPRING BALANCES, see Balances. 



12754. SPRINKLER, Rubber, bulb of extra quality, 8 ounce size, with straight neck $1.00 



12756. SPRINKLER, Rubber, same as No. 12754, but with bent neck 1.00 



SPROUTING APPARATUS, see Grain Testing Apparatus. 

 SPUTUM BOTTLES, Square, see No. 2757. 



12760. SPUTUM DISH, according to Webster, consisting of a 100 mm Petri dish with one half black- 

 ened .50 



12766. SQUARE, all steel, nicely polished, length 2 feet, width 2 inches, face marked in 4ths, 8ths, 

 and 16ths of inches, back in 4ths and 12ths of inches, with board and brace measure. . 1.60 

 12768. SQUARE, Combination. The equivalent of a set of try squares, a depth gage, a level, a mitre, 

 and, with the auxiliary center head, a centering square, both inside and outside. Convenient 

 for transferring exact measurements, laying out work, or to square in a mortise. Twelve inch 

 blade graduated on one side in % mm and 32nds of inches; on the other in millimeters and 



64ths of inches. Complete, with center head and level 3.00 



12772. SQUARES, Try, blued steel blade graduated in 8ths of inches, and rosewood handle. 



Size, inches 6 9 



Each 60 .70 



STAGES, Mechanical, see Microscope Accessories. 

 STAGES, Warm, see Microscope Accessories. 



12780. STAINING APPARATUS, Corper-DeKhotinsky, see aext page. 

 STAINING DISHES, see Dishes, Staining. 

 STAINING JARS, see Jars, Staining. 

 12790. STENCIL, Cenco, transparent, for quickly and easily drawing assembled apparatus in student 



note books _JQ 



12794. STENCIL FIGURES. Each figure has a beaded lock on its edge so' that the figures can be 

 joined together, permitting the use of combinations of figures at one time instead of single 

 figures. Complete set of one-inch numbers from 0-9, dollar mark, cent mark, beginner ender 



and period gQ 



12796. STENCIL LETTERS. Same style as No. 12794. Complete set' of one-inch 'letters from 'A to & 

 with beginner and ender, period, apostrophe, comma and blank 1.25 



