SCIENCE 



Niw Sebixs 



Vol. XXXVIII. No. 977 



Fkiday, September 19, 1913 



SiNQLS COFIKS, 15 CTB. 



Annual Subsobiptioh, $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 



Headquarters for Chemical and Bacteriological Laboratory Supplies 



EIMER & AMEND 



laboratory Supplies 



Pittsburgh, Pa. 



New York 



205-211 Third Avenue 



8035 Jenkins-Arcade Bids. 



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