SCIENCE-ADVERTISEMENTS 



Serological Water Bath of Precision 



Electrically heated and temperature controlled serological water baths capable of 

 operating at 37.5 degrees Centigrade or 56 degrees Centigrade, either temperature may 

 be obtained by a simple turn of the indicative snap switch. The Wassermann test and 

 work may be accompHsheci in the same bath. An Immersion electric heater which is 

 entirely surrounded by water and extends the full lenetK of the bath is used. The 



thermostats are the multiple contact type, capable of repeated heating and cooling without 

 changing the adjustment. Should other working temperatures be desired the adjustment 

 screw on the thermostat permits the temperature to be readily changed. Baths may be 

 had from stock in the following sizes. Specify voltage when ordering: 



PORCELAIN BATHS: 



1803A — 12!/2 in. X 6 in. X 5 in. Double temperature, Price $55.00 



1803B 121/2 in. X 6 in. X 5 in. Single temperature, Price 50.00 



COPPER NICKEL PLATED BATHS; DOUBLE TEMPERATURE: 



1801 — 18 in. X 121/2 in. x 5 in. Price $90.00 



1801A— 24 in. X 121/2 in. x 5 in. Price 95.00 



SINGLE TEMPERATURE 



1801B — 18 in. x 12^2 in- x 5 in. Price $75.00 



1801C — 24 in. X 12!^ in. X 5 in. Price 80.00 



1801D — 26 in. x MYz in. x 5 in. Price 85.00 



Send (or Bulletm ES-1 covering full description. 



Founded 1852 



584 Mission Street San Francisco, Caltf. 



LABORATORY SUPPUES 



Apparatus Chemicals 



Scientific Instruments 



"We know how to pack for export" 

 Inventors — Manufacturers — Elxporters — Distributors 



Cable Address. "BFIAUNDRUG" Los Angelas Honae 



All Codes used. The Braun Corporation 



