THE SHARP MILLAR 

 PORTABLE, UNIVERSAL PHOTOMETER 



For the measurement of 



Luminous Intensity Luminous Flux 



and Illumination 



A practical Instrument 

 for Real Photometric 

 work. Portable enough 

 for use on streets and 

 accurate enough for all 

 laboratory work. Can 

 be used on either no 

 volt or battery current. 

 The battery meter set 

 shown in cut is made es- 

 pecially for use w r ith this 

 photometer in places 

 where there is no no 

 volt current. 



The best instrument for the demonstration of modern photo- 

 metric practice, especially when used in connection with our 

 integrating sphere, described in catalogue no. 26. Also a full 

 line of high grade measuring and testing instruments. 



Foote, Pierson & Company 



160-162 DuaneSt., 



NEW YORK 



