Kric-j 



SCIENCE 



New Series. 



Vol. VIII. No. 189. 



TTtjttia-v a TTr<TTi:!Ti 19 1 SQQ Single Copies, 15 CTS. 



rKiUAJC, .tt-UtjUbl IZ;, 10»0. ANNUAL Sdbsckiption, $5.00 



Sew Line of Laboratory Dtensils 



Laboratory Drying Ovens. 



(Devised by Prof. W. M. L. Coplin. M.D.) 



Incubators, 



Sterilizers, 



Medium Laboratory Incubator. 



Paraffine Baths, 



Drying Ovens. 



Special Copper Work Done to Order. 



Send for New Catalogue, B. M., 1898, of Microscopes and Laboratory Supplies. 



Queen & Co., inc., 



....Optical and Scienti&c Instrument Works.... 



New York Branch : 59 Fifth Ave. IQIO CHESTNUT ST., PHILADELPHIA. 



