Phil. Mag. Ser. 6. Vol. 20, Pl.YIIT. 



22 



ing plucked by plectru 



G-string plucked by plectrum at i 



D-string bowed at |, 



D-string struck at |. 



26 



D-string struck at J, 



A-string bowed at 4-. 



A-string bowed at i, 



