OF SERPENTS. i6 



V/h at confliitates Unifonance, is the Equality of the Num- 

 ber of Vibrations : Uiiilbn is the firii and greatefl of Concords. 

 Odiers fay, it is only that in Sounds which Unity is in Numbers. 



Being once in a Room where there was a Bafs-Viol^ and 

 flriking one of the Sirifigs, a loofe Quarry of Glafs in the 

 Window, jari 'd every time that String was llruck, which it wou'd 

 not do upon firiking any of tlie otlier difcordant Strings. The 

 Reafon may be, I'/s^. That the times of the Vibration of the 

 loofc Quarry, v/ere equal or near Concordance to thofe of the 

 String. A Gentleman of my Acquaintance, when he founded a 

 particular Tone. on the Bafs- Viol, very plainly heard the Noife 

 of the Glafs of the Clock in his Chamber, which Glafs never 



moved, upon his founding any otlier Tone It is a general 



Remark, tliat an XJnifon-Str-big will receive the Motion, and fo 

 tremble, when another Unifon is made to found ; and yet all other 

 Strings of the fame Infti ument, that are not Unifons, fhall remain 

 lilent and unmoved. 



MusicK does not only exert its Force on the Paffions and 

 Affections, and mulical Indruments, but on the Parts of the hu- 

 man Body alfo. Witnefs tlie Gafioigne- Knight, (mention'd by 

 Mr. Boyk) who could not contain his Water, at the playing of 

 a Bag-pipe : The Woman, mentioned by the fame Author, who 

 would burft ou: in Tears, at the hearing of a certain Tune, with 

 which other People were but little affeded : And in this County, 

 near Rcchdnlt\ there is a certain Man, who can't forbear dancing, 

 if in a Houfe, or Marker, upon hearing a certain Tune fung. 



V/o N D E R not at the ftrange Effects of mufical Sounds, when 

 other Sounds ftrangely aff^d: the Mind. How are the Paffions 

 excited by the Sound of a Drum and the Difcharge of Cannons. . . . 

 Not only human Minds and Bodies are affeded by the Impreffion 

 of Sounds, but even Things without Life. 



KIRCHER tells us of a large Stone that would tremble at 

 the Sound of one particular Organ-Pipe. Merfenne alfo tells us, 

 of a particular part of a Pavement that would ihake and tremble, 

 as if the E.irth would open, when the Organs play'd. Mr. Boyle 

 adds, that Seats will tremble at the Sound of Organs, that he has 

 felt his Hat do fo under his Eland, at certain Notes, both of 

 Organs and Difcourfe ; and that he was well inform'd, every well- 

 built Vault, v/ould anfvver fome determinate Note. 



Y We 



