Page:Philosophical Transactions - Volume 012.djvu/29

 Num. 134.

April 23. 1677.

The CONTENTS.

SIR,

Have thought fit to give you notice of a discovery that hath been made here, (about three years since, or more) which I suppose may not be unacceptable to those of the Royal Society, who are Musical and Mathematical. 'Tis this; whereas it hath been long since observed, that, if a Viol string, or Lute firing, be touched with the Bow or Hand, another string on the same or another Instrument not far from it, (if an Unison to it,