SCIENCE 



Friday, November 16, 1900. single copies, is cxs. 



Annual Suesckiption, 88.00 



Analytical Balance, 



Eimer & Amend's new, non-corrosive, shortbeam, agfate-knife edges ; all metal parts gfold- 



plated, black plate glass base. Carries 200 grammes in each 



pan, sensible to t-20th mgrm. 



FINEST ANALYTICAL WEIGHTS, PLATINUM PLATED. 



EIMER & AMEND, New York 



