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



243 



[PRESSURE 



WATER. 



VACUUM. 



{DISCHARGE. 



No. 5502. 



No. 5504. 



EMERGENCY 

 INSTRUCTIONS 



No. 5510. 



No. 5520. 



5502. FILTER PUMP, Water-Jet, very efficient fo use in filtration, percolation, evaporation, distilla- 

 tion, and condensation. May be permanen ly attached or may be used with rubber tube con- 

 nections. Requires only 10 pounds water pressure. With 20 pounds pressure, the capacity is 

 one-third cubic foot of air per minute. A one gallon vessel may be exhausted to a vacuum of 

 29% inches of mercury in five minutes with 20 pounds pressure. Complete with vacuum gage, 



connection tee and two stop-cocks $20.00 



5504. FILTER PtJMP, Steam-Jet, similar to Xo. 5502, but for use with steam instead of water. A one 



gallon vessel may be exhausted to a vacuum of 24 inches of mercury in seven seconds with 50 



pounds pressure. Complete with vacuum gage, connecting tee, stop and check valves. . . 20.00 



5510. FILTER RACKS, of galvanized iron wire with rubber ring, to hold filter paper away from sides 



of funnel to facilitate rapid filtration. 



No A B C D 



Diameter, inches 5 7 9 12 



Each 40 .50 .75 1.00 



5514. FINGER COTS, Rubber. 



No A B 



For men women 



Per dozen . . '. 60 .60 



5520. FIRST AID CABINET. A neat hardwood case, 8x12x3% inches deep, containing: one 1-inch 

 gauze bandage; two 2-inch gauze bandages; one 2-ineh cotton bandage to bind other dressings; 

 one can mustard, especially prepared for emetics; two packages absorbent cotton; one package 

 styptic gauze, medicated, to stop bleeding; one package surgical gauze, plain, for pads and com- 

 presses; one tourniquet, to stop arterial bleeding; one can powdered antiseptic soap, for washing 

 hands and wounds; one can Becrosco Ointment, for burns, scalds, cuts, etc.; one can Kapsikar 

 Embrocation, for use as counter-irritant, for sprains, strains, congestion, etc.; one package court 

 plaster; three safety pins; one envelope hooks and eyes, to hang case on wall. An excellent 

 cabinet to have about the laboratory for treating cuts and burns. Complete as described 3.00 



