42 
«168. 
Experiments 
hin Confort 
touching 
Equality and 
| Inequality of 
| Sounds, 
169. 
170, 
171. 
172. 
173. 
} cutteth the Air fo fharp 
ph fi ee ee a 
Natural Hiftory ; 
with Cloth or Silk, it will give a diverfe Sound from thatit would doo f i 
felf ; fo if the Pipe be a little wet on the infide; it will make a differirs 
Sound, fromthe fame Pipe dry. . (co. Qh 
That Sound made within Water,doth communicate better with a hard 
Body thorow Water, than madein Air, it doth with Air. ‘ide Eppa m7 
134. SAND ant 
H 
. 7 os : 
E have fpoken before (in the Inquifition touching Cirufick) of Mu 
fical Sounds, whereunto there may bea Concord or Dilcord in: two 
Parts ; which Soands we call Tones, and likewife of Immufical Sounds ; and 
have given thecaufe, that the Tone proceedeth of Equality, and the other | 
of Inequality. And we have alfo exprefled there, what are the Equal} 
Bodiesthat give Tones, andwhat arethe Unequal thatgive none. Burnow | 
we fhall {peak of fuch Inequality of Sounds, as proceedeth not from the 
Nature of the Bodiesthemfelves, but isaccidental, Either from the Rough- | 
nefsor Obliquity of the Paffage, or from the Doubling of the Percutient, } 
or from the Trepidation of the Motion. | 
A Bellif it havea Rift init, whereby the found hath not a clearpaflage, | 
giveth a hoarfe and jarring found ; fo the Voice of Man, when by cold 
taken, the Wefil groweth rugged, and (as wecall it) furred, becometh | 
hoarfe. And in thefe two inftances, the Sounds are ingrate, becaufe they | 
are meerly unequal ; but if they be unequal inequality, then the Sound is 
Grateful, but Purling. 3 a: Te 
. Alb Jnftruments that have either Returns,as Trumpets ; orFlexions, as] 
Cornets; oraredrawnup,and putfrom, asSackbuts,have a Purling Sound 5} 
But the Recorder or Flute thathave none of thefe Inequalities, givea clear | 
Sound. Neverthelefs, the Recorderitfelf or Pipe, moifteneda little in the | 
infide, foundethmore folemnly, and with alittle Purling or Hifling. Again, | 
a Wreathed String, fuch as are in the Bafe Strings of Bandoraes, giveth alfo} 
aPurling Sound. © | ft 
LutaLute-ftring, if ic be meerly unequal in his parts, giveth aharfh |” 
and untuneable Sound, which ftrings we call falfe, being bigger in one} 
place, thanin another ; and therefore Wire-ftrings are neverfalfe. Wefee| 
alfo, that when We try a falfe Lute-ftring, weufe to extend it hard between | 
the Fingers, and to fillip it; and if itgivetha double fpecies, it is trues but} 
if it giveth a trebbleormore, it is falfe. i ae 
Waters, inthe noife they make as they run, reprefent tothe Ear a] 
trembling noife ; and in Regals (where they have a Pipe, they call the} 
Nightingale-Pipe , which containeth Water) the Sound hath a continual} 
trembling. And Children have alfo little things they callCocks, which} 
have water inthem; and when they blow, or whiftle inthem, they yield] 
a trembling noife; which Trembling of Water, hath an affinity withthe} 
LetterL. Allwhich Inequalitics of Trepidation, arerather pleafant, than | 
otherwife. sigh 
All Bafe Notes, or very Trebble Notes, give an Afper Sound ; for that} 
the Bafeftriketh more Air, than it can well ftrike equally; andthe Trebble | 
, asit returneth too {wift, tomake the Sound equal ;| 
andtherefore a Mcan or Tenor is the fweeteft part. ce 
We know nothing, chat can at pleafure make aMufical or Imm 
| Sound, by voluntary Motion, butthe Voiceof Man and Birds. ‘Theca 
(no doubt) in the Wefil or Wind-Pipe, (which we call Aferia Arter 
' 
: 
Se ati te 5 ‘ inh bape ‘i 
Asya a YY RE ET RT Pe Cab 20 Eanes 240 
