^0^^ 



SCIENCE 



Annual Subsceiption, 55.OO. 



QUEEN INSTRUMENTS 



111], i p \, i ii 



New 



Queen Wall Pattern 



Galvanometer 



The Moving Coii in this Galvanometer is of small diameter and light weight. It can be made 

 dead beat and -will then give readings with much greater rapidity than other forms on the market. When 

 arranged for Ballistic Tvork the period of swing can be made as desired. 



Circular 500 describes this and a number of other new instruments in detail. 



Physical Apphrhtus Ibductiow Coils Electrical Testimg Ihstrumeiits 



QUEEN &, CO., Inc. 



J. G. GRAY, President 



ELECTRICAL AND SCIENTIFIC INSTRUMENTS 



59 Fifth Avenue, New Yorl< tr\tr\ /^i a ^ r»i r-ii -i 1 1 1 • i-. 



480 Monon Bidg., Chicago 1010 Chcstnut St., Philadelphia, i--.- 



