1 
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131 
132 
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135 
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3\f atarall Hiflorj 
r I 
; it is tried, that in a long Trunke, of fome eight or ten foot, the Sound is 
| holpen, though both the Mouth; and the Earebzo ahandfull, of more; 
from the Endsof xhtTrunke ; Andfomewhat more holpen, when the 
Eare of the Hearer is neere, than when the Mouth of the Speaker. And it is 
ceitaine,that the Voice is better heard in a chamber from abroad, than abroad 
from within th t Chamber. 
As the Enclofure, that is Round about and Entire, preferueththe Sound . 
So doth a semi-Concauc, though in a Idle degree. And therefore, if you 
diuicea Trunke ora Cane into two, and one fpeakeat the one end, and 
youiay vonr Eare at the other, it will carry the Voice further, than in the 
Aire at-large; Nay further, if it be not a full semi-Concaue ; butifyoudoe 
the like vpon the Mafl ofa Ship, ora long Pole, or a Peeceof Ordnance (though 
one fpeake vpon the Surface of the Ordnance , and not atany ofthe Bores;) 
the Voice will be heard further, than in the Aire at large. 
It would bee tried, how, and with what proportion of difaduantage, 
the Voice will bee carried in an Horne, which is a line Arched ■ Or in 
a Trumpet, which is a Line Retorted ; Or in fome Pipe that were Si¬ 
nuous. 
It is certaine, (howfoeuer it crofle the Receiued Opinion ) that 
Sounds may be created without Aire, though Aire bee the moft fauoura- 
ble Deferent of Sounds. Take a of water, and knap a paire of Tongs 
fome depth within the Water, and you fhall heare the Sound of the 
Tongs well, and not much diminifhed • And yet there is no Aire at all 
prelent. 
Take one VeJfeU of Siluer, and another of Wood, and fill each of them 
full of Water, and then knap the Tongs together, as before, about an 
handfull from theBottome, and you fhall finde the sound much more 
Refounding from the VeJJell of Siluer, than from that of wood: And yet 
if there bee no Water in the V eJJeU , fothat you knap the Tongs In the 
Aire, you fhall finde no difference, betweene the siluer and woodden 
Vcffell. Whereby ,befide the maine point of creating Sound without Aire, 
you may colled: two things : The one, that the sound communieateth 
with the Bottome of the Veffell : The other, that fuch a Communication 
pafieth farre better,thorow water, than Aire. 
Strike any Hard Bodies together, in the Middeftofa Flame, and you 
fhall heare the Sound , with little difference , from the Sound in the 
Air<LJ. 
The Pneumaticall Part, which is in all Tangible Bodies , and hath fome 
Affinity with the Aire, performed, in fome degree, the Parcs of the 
Aire 5 As when you knocke vpon an Empty Barr ell, the Sound is (in part) 
created bv the Aire on the Out-fide And (in part) by the Aire in the 
Infide j For the SoundwiM bee greater or Idler, as the Barrell is more 
Empty, or more full ; But yet the Sound participated alfo with the 
Spirit in the wood, thorow which it palfeth, ■ from the Out-fide to the In¬ 
fide : Andfo itcommeth topaffe, in the Chiming of Belt, ori the Out- 
fide 5 where alfo the Sound palfeth to the Infide : And a number of o- 
ther, 
