308 



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



No. 7562 (in use). No. 7556. 



A No. 7558. B 



No. 7572. 



No. 7570. 



all, 18 inches; projection from wall, 6 inches; gas supply required, % inch clear bore pipe; 

 maximum consumption per hour, 20 cubic feet of gas. Complete with coupled taps and pilot 



light $33.00 



7544. HEATEK, Instantaneous Water, same as No. 7542, but equipped with burner for gasoline 



gas 34.00 



7546. HEATER, Instantaneous Water, similar to 7542, but larger with twice the capacity. Height 

 over all, 19 inches; projection from wall, 8 inches; gas supply required, % inch clear bore 

 pipe; maximum consumption per hour, 40 cubic feet of gas. Complete with coupled taps and, 



pilot light 39.00 



7548. HEATER, Instantaneous Water, same as No. 7546, but equipped with burner for gasoline 



gas 40.00 



HONES, see Microtome Accessories. 

 HOSE, Rubber, see Rubber Tubing. 

 7556. HOSE CONNECTOR, brass, for rubber tubing, with thread for ordinary hydrant or kitchen bib. 



70 



7558. HOSE CONNECTORS, brass, for smooth faucets. For % inch faucet. 



No A B 



Each 65 .65 



7560. HOSE CONNECTORS, brass, same as No. 7558, for % inch faucet. 



No A B 



Each 75 .75 



7562. HOSE CONNECTOR, Universal, not threaded, but merely slipped on a faucet and fastened with 

 a chain. Can be quickly attached to any water faucet. The simplest device for attaching filter 

 pumps, stills, water motors, turbines and centrifuges to a common faucet. It is practical, self- 

 tightening and air tight 2.00 



7570. HOT PLATES, Electric, round form, three heat, mounted on enameled slate base with regulating 

 switch and furnished with six feet of cord, but without lamp socket plug except Nos. A and B. 

 May be used on either alternating or direct current circuits. 



No A B C D E 



Diameter, inches 4% 6 8 10 12 



Power consumption, minimum watts 83 150 250 275 325 



Power consumption, maximum watts 250 440 735 1100 1300 



Each 6.50 9.00 14.00 20.00 28.00 



In ordering kindly state voltage. 



7572. HOT PLATES, Electric, rectangular form, three heat, with 4 feet of cord but without lamp 

 socket plug. Nos. A and B have three plug switches; C and D have snap switches. 



No A B C D 



Size, inches . 9x12 12x18 18x24 4%x24 



Power consumption, minimum watts 300 550 1000 150 



Power consumption, maximum watts 880 1550 2800 600 



Each 22.00 29.00 50.00 16.00 



In ordering kindly state voltage. 



