20p 
210 
the Touching of the Ordnanoe would not extinguish the Sound the foo- 
■ ncr : So that in great Sounds the Continuance is more than Momen- 
‘ tany. 
To rry exaftlv the time wherein Sound is Delated, Let a Man ftand ih 
a Steeple, and hailc with him a Taper; And let fomeVaile bee put be¬ 
fore the Taper • And let another man Hand in the Field a Mile off. Then 
j let him in the Steeple ftrike the Bell; And in the fame Inftant with-draw 
i theVaile* Andfo let himin the Field tellby hisPulfewhatdiftanccof 
; Time theieiSj betweenethe Light feene, and the Sound Heard : For it is 
i certaine that the Delation of Light is in an 1 lift ant. This may bee tried in 
farre greater Diftances, allowing greater Lights and sounds, 
; It 1 s generall v knownc and obferued, that Light and the Obieft of Sight , 
mooe fwiftcr than Sound \ For wee fee the PlafJj of a Peece is feene fooner 
than the Noife is heard. And in hewing wood, if one be fome diftance off, 
I he thallleethe Arme liftedvp fora fecond Stroke, before hee heare the 
1 Noife df the firlL And the greater the Diftance,the greater is the Preuen- 
j tion: As wee fee in Thunder which is farre off- where the Lightning Pre- 
cedeth the Cracke a good fpace. 
Colours , when they reprefent themfelues to the Eye, fade not, nor 
| melt not by Degrees, butappeare ftillin rhe fame (Length ; But Sounds 
melt, and vanilh, by little and little. The caufeis, for that Colours par- 1 
ticipate nothing with the Motion of the Hire • but Sounds doe. And it is 
a plaine Argument, that Sound participated of fome Loculi Motion , of 
the Aire {a. s a Caufe Sine cjud^nonJ in that, it perifheth fo fuddcnly • For 
ioeuery Se&ion, of Impulfionof the Aire, the Aire doth fuddenly re- 
ftore and reunite it felfc ; which the water alfo doth, but nothing fo 
fwiftly; 
InthcTriallsof thcTafl'age ) ot?(pt Paffageof Sounds, you Experiments 
muft take heed, you miftake not the Pacing by the Sides of a 
PaJJage ,and 
intactptimof 
Sounds. 
211 
Body, for the Pacing thorow a Body: And therefore you muft 
make the Intercepting Body veryclofc •, For Sound will pafte 
chorow a (mall Chincke. 
Where Sound paffeth thorow a Hard, or Clofe Body (as thorow water-, 
thorow a Wall - thorow Metall ,as in Hawkes Bells flopped,&c.)the Hard } 
ok Clofe Body, muff bee but thin arid fmall ; Forelfeitdeadeth andextin- 
guifheth the .SVaWvttcrly. And therefore in the Experiment of Speaking in 
Aire vnder water, the Voice muft not be very deepe within the water: For 
then the Sound j derceth not. So if you fpeake on the further fide ofa Clofe 
Wall, if the Wallbo very thicke, you (hall not be heard: And if tht re were 
an Hogfheadempty, wheteofthe Sides were fome two Foot thicke, and 
thebunghole ftopped * I eonceiue the Refounding Sound,by the Commu¬ 
nication of the Outward Aire , with the Aire within, would be little or none. 
But onely you fhall heare the Noife of the Outward Knocke, as if the Vef- 
fell Were full. 
, F i It 
21 * 
