. 
ar, 
/more in Tones, than in Speech; therefore the inward voice or whifper, 
| can never give a Tone. And in finging, there is (manifeftly) a greater 
_ | working and labor of the Throat, than in {peaking as appeareth in the 
thrufting out, ordrawing in of the Chin; when we fing: Cais 
The Humming of Bees is an unequal buzzing, and is conceived by fome 
ofthe Ancients, not tocome forth at their’Mouth, but to bean inward 
Sound ; but (it maybe) itis neither, but from the motion of their Wings ; 
for ic is not heard, but when they ftir. 
‘|. All Metals quenchgd in Water, give a fibillation orhiffing found (which 
| hath an affinity with the LetierZ.) notwith{tanding the Sound be created 
| between the Water or Vapor, andthe Air. Seethingalfo, if therebe but 
_ | fenall ftoreof Water in a Veffel, givetli a hifling found; but boyling in a 
| full Veffel, givetha bubbling found, drawing fomewhat near to the Cocks 
ufed by Children. vee ne 
fryal would be made, whether the Inequality, or interchange of the 
Medium, will not produce an Inequality of Sound ; as.if three Bells were 
_ | made one within another, and Air betwixt each; and then the outermoft 
~ 1 Bell were chimed with a Hammer, how the Sound would differ from a 
‘}fimple Bell. So likewifetakea Plate of Brafs, anda Plank of Wood, and 
_jjoynthem clofe together, andknock upon one of them, and f{ecif theydo 
| not givean unequal Sound. » So make yo or three Partitions of Wood in 
| a Hogthead, with holes or knots in'them; and mark the difference of their 
found, from the found of an Hogfhead; without fuch partitions. 
| L is evident, that the Percuffion of the greater quantity of Air, caufeth 
the bafer Sound; and the lefs quantity, themoretrebble Sound. |The 
Percuflion of the greater quantity of Air, is produced by thegreatnefs of 
| the Body percuffing; by the Latitude of the Concave, by which the Sound 
| paffeth, and by the Longitude of thefame Concave. Thereforewefee,that 
a Bafe-ftring is greater thanaTrebble; a Bafe-pipehath agreater borethan 
_|aTrebble: And in Pipes, and the like, the lower the Note holesbe, and the 
"| fartheroff fromthe Mouth of the Pipe, themore Bafe found they yield; 
| and the nearerthe Mouth, the more T'rebble. Nay more, if you ftrike an 
Jentire Body, asan Andiron of Brafs, at thetop it maketh a more Trebble 
| foand, and at the bottom a Bafer. 
Itis alfo evident, that the fharperor quicker Percuffion of Air, ‘caufeth | 
| themoreTrebble found ; and the flower or heavier, the more Bafe found. 
| Sowefee inStrings, the more they are wound up and {trained (andthereby 
_ | give amore quick fart back): he more Trebble isthe found ; and the flacker 
| they are, or lefs wound up, the Bafer is the found. | Andtherefore abigger 
String more ftrained, anda leffer String lefs{trained, may fall into the fame 
} Tone. F 
|  — Children, Women, Eunuchs, haye more fmall and fhrill Voices than Men. 
| the reafon is, not for that Men have greater heat, which may make the 
| voice ftronger, (for the ftrength of a Voice or Sound, doth make adifference 
J in the loudnefs orfoftnefs, but not'in the Tone) but fgom the dilatation of 
} the Organ, which (itis true) is likewife caufed byhéat ; butthe caufe of 
| changing thevoice atthe years of puberty,is moft obfcure. Itfeemeth tobe 
4 for that, when much of the moifture of the Body, which did beforeirregate 
|\which being well extended, gathered ‘equality 3 bas wa Bladder that is 
| wrinckled, if it be extendedsbecometh {mooth.. The extenfion is always, 
the 
178. 
Experiments { 
in Confort, 
touching the 
more Trebble, 
and the more - 
Bafe Tones or 
Muficat 
Sounds. 
