if^.'f ^ 



SCIENCE 



New Seeies. FrTBAV T)l?p-pM"RT?R Ifi 1 SQS Single Copies, 15 cts. 



Vol. VIII. No. 207. rKlUAY, ■UJl.CJi.M.BbR ID, iOyS. Annual Subsoeiption, $5.00 



Chemical and Physical Apparatus 



CHEMICAI. PURK ACIOS ANP 

 CHEMICALS 



Spencer 

 Lens 



SELLINQ AGENTS FOR 



Company ^ 



Carl ^^, 



Zeiss, 

 Jena "^ 



Baker & 



Adamson 



Chemical Co. 



and 



Desmontis, 



Leraaire & Co.'s 



Platinum 



Miller McPherson Bacteria Counter 

 SOLE AGENTS FOR 



SCHOTT & GONOSSEN, JENA NORMAL GLASS 

 SCHLEICHER & SCHULL'S CHEM. PURE FILTERS 

 SCHMIDT & HAENSCH'S OPTICAL APPARATUS 

 MAX KOHL'S PHYSICAL APPARATUS 



EIMER& AMEND 



205, 207, 209, 211 Third Ave. 

 NEW YORK 



