DAVIS. — LONGITUDINAL VIBRATIONS OF A RUBBED STRING. 701 



B 1.0 



.9 1.0 



j 



Figure 2. Amplitude measurements on a string bowed at points \, \, \, and \ 

 of its length from one end. The ordinates are the amplitudes actually observed, 

 in hundredths of a millimeter. The node formed by the brass ridge is at the 

 right. 



