N ATVRALL 
HISTQRl E . 
III. Century. 
L L ^#/?d/(whatfoeuer)moue Round • That is to fav ; j 201 
On all Sides ; upwards • Downwards ^ Forwards 5 and 
Backwards. Thisappeareth in all Inflames. 
Sounds doe not require to be conueved to the Senfe, 
ina Right Line, as Yifiblcs doe, but may bee Arched * 
Though it be true,they moue ikongeft in a Right line 5 
which neuertheleffe is notcaufedby the Rightnejjeoi 
the Line, but by the ShortneCe of the diftance • Lima retta breuijfima. And 
therefore wee iee,ifa wall bee betweene, and you f peake on the one Side, 
you hear e it on the other 5 Which is riot becaiife the Sound paifeth ihoroW 
the wall • but Archeth ouer the wall. 
If the Sound bee-Stopped and Repercujfcd , it commefch about oh the other 
Side, in an Oblique Line. So, if in a Coach, one Side of theBootbedowne, 
and the other vp ^ And a Beggar beg onrhe Clofe Side j you would 
thinke that he were on the Open Side.So likewife,ifa or Bell Clocks jdt($ox 
Example) ontheNorth-fideofa Chamber; And the Window of that 
Chamber be vpon the South ; Hee that is in the Chamber will thinke 
the Sound came from the Souths 
' Sounds though they (pread round, (fothat there is an Orbs or Spheric all i 04 
Area of the Sound • ) yet they moueftrongc-ft, andgoe furthett in the 
Pore-lines > from the firft Locall Impulfion of the Aire. And therefore 
in Preaching , you fhall heare the Preachers Voice, better before the Pulpit 
tlvanbehinde it, or on the Sides, though it ftandopen. So a Harquebus, 
or will be further heard, forwards,from the Moufh of the Peece % 
than back wards,- or on the S ides. 
It may bee doubted, that Sounds doe moue better Downwards 205 
Fa than 
Experiments 
in Confute 
touching the 
Mstms of 
Sounds, ia what 
lines they are 
&ircnkr,Ob- 
tique. Straight ; 
ypwardsydoix?!- 
mras-. For¬ 
wards, Bacii- 
rnrds. 
202 
20'3 
