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Experiments 
in Conforc 
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199 
1 91 
Experiments 
in Cunfori tou¬ 
ching ArticnU. 
UMojStmdi. 
I?2 
There is required iomefenfible Difference mthe Proportion of crea¬ 
ting a Note , towards the Sound it felfc, which is the Pailiue: And that it 
bee not too neare, but at adiftance. For in a Recorder, the three vpper- 
moit Holes j yeeld one Tone - which is a Note lower than the Tone of the 
firft three. And the like (no doubt) is required in the Winding or Stop¬ 
ping of Strings. 
There is another Difference of Sounds , which wee will call 
Exteriour , and Interiour. It is not Soft , nor Loud 1 Nor it is nor 
Safe, norT^/tf.Norit is not Muf call,nor lmmuficall. Though 
it bee true, that there can bee no Tone in an Interiour Sound: But 
on the other fide, in an Exteriour Sound , there may bee both 
Muficall and lmmuficall. Wee (hall therefore enumerate them, 
rather than prccilely diftinguifh them ; Though (to make 
fomc Adumbration of that wee meane) the Interiour is rather 
an lmpulfion or ContuHon ot th cAire, than an Elifion or Section 
ofthefamc. So asthcPm^/zwofthcone, towards the other, 
differech,as a Blow differcth from a (jut. 
In Speech of Man, the f^hijpering^ (which they call Sufurrn in Latint^,) 
whether it be louder or fofter, is an Interiour Sound But the Speaking 
out , is an Exteriour Sound ; And therefore you can neuermake a Tones, 
norfingin tvhijfering • But in Speech you may : So Breathing, or Slowing 
by the Mouth, Bellowes % oxmnd t (thpugh loud) is an Interiour Sound • But 
the Blowing thorow a Pipe, or Concaue, (though fof t) is an Exteriour. So 
likcwife, the greateft mndes, if they haue no Coarctation, or blow not 
hollow, giuean Interiour Sound • The Whiffling or hollow Winde vccl- 
deth a Singing,or Exteriour Sound • The former being pent by fome other 
Body; The latter being pent in by his owneDenfity: And therefore wee 
fee, that when the Vtinde bloweth hollow, it is a Signeof Rainc. The 
Flame, as it moueth wirhinit felfe, orisblowneby a Believes, giuetha 
Murmur or Interiour Sound . 
There is no Hard Body, but ftruckeagainft another HardBody,m\\ yeeld 
S an Exteriour Sound, greater or lefler: Infomuch as if the Pcrcuflion bee 
I ouer-foft, it mav induce a Nullity of Sound • But neueran Interiour Sound-, 
I As when one treadeth fo foftlv, that he is not heard. 
Where the Aire is the Percuiient , pent, or not pent, againft a Hard Bo¬ 
dy neuer giueth an Exteriour Sound-, As if youblow flrongly with a Bcl- 
lowes againlf aWall. 
Sounds (both Exteriour and Interiour J may bee made as well by SuBion, 
as by Emifiion of the Breath: As in tvhijiling, or Breathing. 
I T is euident, and it is one of.the ftrangeft Secrets in Sounds, that the 
whole Sound is not in the whole Aire onely • But the whole sound is alfo 
in cnery fmall Part of the Aire. So that all the curious Diuerfityof Arti¬ 
culate 
