SCIENCE— ADVERTISEMENTS 



MAKE FULL USE OF YOUR 



TYPE K POTENTIOMETER 



The Type K Potentiometei- is in use in nearly all edu- 

 cational laboratories, but in many eases it is reserved for 

 standardization purposes and measurements of extreme 

 precision. 



It is highly desirable that the student become thor- 

 oughly familiar with the operation of the Type K Po- 

 tentiometer Equipment which occupies such an import- 

 ant place and is so widely used in making physical 

 measurements. This can be done if the student is per- 

 mitted to take advantage of the ease and rapidity of 

 operation of the Type K Equipment and make use of 

 it for laboratory measurements other than those of 

 standardization. Such a policy may require that there 

 be available one or more additional Type K Potentio- 

 meter Equipments to which the student may make fre- 

 quent reference. 



The procurement of an additional Type K Potentio- 

 meter Equipment for this purpose is a very worth while 

 investment. 



A description of the Type K Potentiometer and 

 Directions for Operation are given in Catalog 870 



LEEDS & 



ELECTRICAL MEASURING INSTRUMENTS 

 4901 STENTON AVENUE PHILADELPHIA, PA. 



