—— Natural Hiflory 5 
ButSounds do difturb and alcer the one the other: Sometimes theone. 
drowning the other, and making irnotheard; fometimes the one jarring and 
difcording with the other,and making a confufion ; fometimesthe one ming- 
ling and compounding with the other, andmaking an harmony. ~ cedhetindl 
Two Voices of like loudnefs, will not be heard twice as far, asone of| 
themalone; and two Candlesof like light, will nor make things feemtwice | 
as far off, as one. Thecaufe is profound, but itfeemeth, that the Imprefii- | 
ons from the objets of the Sentes, domingle refpedively, every one with| 
his kindes but not in proportion, as is before demonftrated: And the reafon | 
may be, becaufe thefirft impreflion, which is from Privative to Adve, (as 
| from Silenceto Noife, or from Darknefs to Lighr,) is a greater degree, than} 
from le noife, to more noife, or from lefs light, to more light, And the | 
| reafon of that again may be, For that the Air, afterit hath received acharge, | 
doth not receive a furcharge, or greater charge, with like appetite, as it | 
doth the firftcharge. As for theincreafe of Vertue generally, what propor- | 
tion it beareth to the inereafe of the Matter, it is alarge Field, and tobe | 
handled by it felf. oo a 
; 
1 
: 
228. } 
— 
LL Reflexions Concurrent, do make Sounds greater ; but if the Body | 
A that createth, either the original Sound, or the Reflexion, be elean and | 
fmooth, it maketh them fweeter. Tryal may be made of a Lute or Vial, with 
the Belly of polifhed Brafs in{tead of Wood, We {ce, that evenin theopen | 
‘Air, the Wire-ftring is fweeter than the firing of Guts. And we fce, thatfor Re- ' 
flexion, Warerexcelleth ; asin Muficknearthe Water, orin Eccho’s. eo 
| in Confort, 
| touching 
| Meluration of 
| Sounds, 
It hath been tryed, that a Pipe, alittle moiftned on the infide, but yet 
fo as there be nodrops left, maketh a mote folemn found, thanif the Pipe 
weredry; but yet with afweetrdegree of Sibilation or Purling, as we touched | 
; itbefore in the Title of Equality. ‘Vhe-caufe is, for that all things porous, be- | 
ing fuperficially wet, aid (as it were) between dry and wet, become alittle | 
; more even and fmooth;. bur the Purling (which muft needs proceed of In-|_ 
| equality) I take to be bred between the fmoothnefs of the inward Sucface | 
of the Pipe whichis wet, andthereftof the Wood of the Pipe, unto which] 
| the wet cometh not, but it remaineth dry. | ae 
In Frofly weather, (W7ufick, within doors foundeth.better; which may of 
be, by reafon not of the difpofition of the Air, but of the Wood or Stringof|. 
| the Inftrument, whichismade more crifp, and fo more porous and hollow; | 
and we fee that Old Lutes found better than New, forthe famereafon : And fo]. 
do Luye-firings thathave been keptlong. > a oe 
Sound is likewife meliorated by the mingling of open Air with pent Air |” 
Therefore tryal may-be made of aLute or Vial with a double Belly, making. 
another Belly with a knot over the firing; yet fo, as there be room enough | 
| for the firings, and room enough to play belowthat Belly. Tryal may be | 
alfo made of an Irish Harp; with aconcave on both fides, whereasit ufethto } 
haveit but on onefide. The doubrmay be, left itfhould maketoo much 
founding, whereby one Note would overtaké another, = 
If you fing in the hole of a Drum, it maketlthefinging more { 
Ando I conceive it would,if it were a Song in Parts {ung into feveral Dr. 
and for handfomnets and-ftrangene(s fake,. it would not be amifs. to have: 
| Curtain between theplace where the Drums are, andthe hearers. teh 
bo 93 Ai _ > When afound is created in the Vind-7nfirament, betweenthe Breath 
a: | Air, ye: if thefound be communicate with a more equal Body of the 
230. 
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231. 
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