SCIENCE 



Naw Seeies 



Vol. XXXVIII. No.! 



Fkiday, July 18, 1913 



Single Copieb, 15 Cts. 

 Annual Subboeiftion, 85.00 



{Approved by the National Board of Fire Underwriters) 



ACCURATE 



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 



20S-211 Third Avenue 



m Pittsburgh, Pa. 



8035 Jeokiiu-Arcade Bids. 



