lf%f^ 



SCIENCE 



Nkw Series. 



Vol. VIII. No. 206., 



Friday, December 9, 1898. SllL'S^l.^,?. 



Annual SnBsoBiPTioN, S5.00 



New Laboratory Glassware 



From Catalogue BM i8q8 sent on request 



■GROUND SURfnCE. 



3S93 



3936 



3951 



Xetanus Distaes. A double dish for the growing of tetanus cultures, after Gabrltsohewaky. 10 

 cm. diameter. Per pair 



Coplin StainiUK and Rreparation Jar, new and Improved form. Devised and used 

 bv Prof. W. M. L.Coplin at tbe Jefierson Medical College. Witb air-tight cover. Per dozen . . . . 



Without cover for cork stopper 



See jificro. Bulletin, August, 1S93. 



I»etrl Dista Holder, Suggested by Dr. M. P: Eavenel, of the University of Pennsylvania. A 

 form of wire, nickeled, into which may be sprung three or six 4 in. Petri Dishes. Holds them 

 securely. For 3 dishes, each S0.50; for 6 dishes, each 



Balsam Bottle. New form, with conical collar projecting inside, which readily removes the 

 superfluous balsam from the rod. Capacity, IJ^ oz. Price, per dozen, $3.00. Each 



WRITE FOE COLLEGE DISCOUNT 



QUEEN «Sc CO., iiNc. 



$I.OO 



6.00 

 4-50 



Optical and Scientific Instrument Works 



59 Fifth Avenue, New York 



1010 Chestnut St., Philadelphia 



