SCIENCE 



Vol. XXX Vm. No. 990 



Friday, December 19,1913 f "«•-' *?""*• ^ •^"- „„ 



' ' Annual Subsobiption, $6.00 



THE 

 FREAS ELECTRIC INCUBATOR 



{Approved by the National Board of Fire Underwriters) 



ACCURATE 

 RELIABLE 

 DURABLE 



The many advantages of the Freas 

 Electric Incubator strongly recom- 

 mend its use — where electricity is 

 available — in preference to any 

 other incubator. 



MADE IN SIX SIZES 



Write today for 



Descriptive Booklet to 

 The Sole Distributors 



EIMER & AMEND 



Headquarters for Chemical and Bacteriological Laboratory Supplies 



New York 



205-211 Third Avenue 



I Pittsburgh, Pa. 



8035 Jenkiiu-Arcade Bids. 



l<^' 



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