BACTERIOLOGICAL INCUBAT 



No. 20548 C. S. &. E. Anhydric Electric Incubator 



C. S. Si. E. 



lie ELECTRIC 



MCUBATORS 



The walls of these Incubators consist 

 of five-ply wood, tar paper, animal hair 

 and transite. No water jacket is used 

 and the C. S. & E. Electric Thermostat 

 maintains a constant temperature within 

 ^° C with no attention after adjustment 

 is once made. No special switch or 

 wiring is necessary as the Incubators 

 operate on any 110 volt alternating or 

 direct circuit by screwing plug into 

 ordinary lamp socket, and will operate 

 on 220 volt direct or alternating circuit 

 by simply changing the voltage of the 

 lamp heaters. 



These are supplied in six different sizes, 

 the smallest with inside dimensions 

 9x7x7 inches at S15.00 and the largest— 

 as shown in illustration — with inside 

 dimensions 30 x 36 x 18 inches at S125.00, 

 all of which are carried in stock in 

 Philadelphia for immediate shipment. 



COMPLETE DESCRIPTIVE PAMPHLET 

 SENT UPON REQUEST 



HEARSON INCUBATORS 



WITH PATENT CAPSULE TEMPERATURE 



CONTROL FOR GAS, OIL AND 



ELECTRIC HEATING 



We have supplied over two hundred Hearson 

 Incubators to important U. S., State, City and 

 Hospital bacteriological laboratories through- 

 out the U. S. Their performance has been 

 universally satisfactory and in view of this 

 experience we are willing to recommend the 

 Hearson patent capsule temperature control 

 as being the most accurate and simple device 

 for the uniform control of incubator tempera- 

 tures now on the market. 



We supply them in nine sizes for gas heating, 

 six sizes for oil heating, six sizes for electric 

 heating and eight sizes for low temperatures, 

 and keep a stock on hand of the more popular 

 sizes for immediate delivery. 



COMPLETE DESCRIPTIVE PAMPHLET SENT 

 UPON REQUEST 



No. 20740 Hearson Gas Heating Incubator 



ARTHUR H. THO 



IMPORTERS— DEALERS— EXPORTERS 



LABORATORY APPARATUS AND REAGENTS 



WEST W/ASHINGTON SQUARE 



PHILADELPHIA, U. S. A. 



