SCIENCE 



New Sebies. 

 Vol. VII. No. 167. 



Friday, March 11, 1898. 



Single Copies, 15 cts. 

 Annual Sobsckiption, $5.00. 



QUEDN St CO.. 



METEOROLOGICAL INSTRUMENTS. 



Maximum and 

 Minimum 



Thermometers, 



Standard 



Barometers 



lor Laboratory, 

 Recording 



Thermometers. 



Catalogue on Application. 



Physical and Electrical Instruments. 



The following New Catalogues have just been published and will be sent on application : 



Catalogue of Physical Laboratory Supplies. 



Catalogue of Electrical Test Instruments. 



Catalogue of Engineering Instruments. 



Queen & Co., incorporated, 



Optical and Scientific Instrument Works, 

 N. Y. Office, 116 Fulton St. 1010 Chestnut St., Philadelphia, Pa. 



