Nal: ty and and nbiry cae Sounds, ibid, 2 
34. Swiftnels of Motion, may make 
Siunds inaudible, ibid, Sounds not an E- 
lilion of the Aur, ee T he reafons there- 
of, 35+ Soand not produced without fome 
local motion of the Medium, ibid. Yee 
diffinthion tobe made betwixt the motion 
of the Air, and the Sounds themfelves, 
ibid, 36. Great Sounds, caufe great mo- 
tions inthe Air, and other Bodies, ibid. 
‘Haverarefied the Air much, ibid, Have 
caufed Deafnefs,idid. Evélofure of Sounds 
conferveth them, iride Sounds partly in- 
clofed, ara Pe open Air, ibid, Bet- 
ter heard {rom without,t ben from within, 
ibid, 4 Semi-cave will convey Siund, 
Létier then open Air.idid, Any long Pole 
willdo the lik2,ibid, Tryalto be madein 
a crooked ee ibid, Sounds may be 
created without Air, 37. Difference of 
* Sounds in different Veffels fled with water, 
ibid. Sound within a Flame, ibid, ‘Sound 
apon a Barrel ergptier or foller, ibid, 
Sound not created betwixt the Bow and 
the String , but betwixt the String and 
the eAir : ibid, 
Magnitude of Sound, 45, 1a aTranck,ibid, 
The caufe thereof, ivid. I» an Hunters 
Horn bigger at the lower end, 3% The | 
caufe thereof, ibid, t22 Vault antler the 
Earth, ibid, The canfe thereof, ibid, I” 
Hawks Bells, rather then upon a piece of 
Brafs inthe oper effir, itic. In a Drum, 
ibid. Farther heard by night, then by 
day, ibid. The caufe thereof, ibid, In 
creafed by the concurrext ii anion. ibid, 
Yncreasent by the Sound-board in tftru- 
ments,ibid, In an Irifh Harp, ibid. The 
caufe of the loud found thereof, ibid, In , 
a Pirginal the Lid fhut, ibic. [naCor 
cave within a Wall, ibid. 38,39. Ina 
Bow-firing, the Horn of the Bow laid to 
the ear, ibid. 29. The like in a Rod of 
Ironor Brafs, ibid, The like conveyed by a 
Pillar of Wood, from an-upper Chamber 
toalower,idic. The like from the bottom 
of a well, ibid. Five ways of Majoration 
of Sigs ibid. 
Exility of Sounds through any porous Bodies, 
ibid. 39, Throughwateryivid.4o, ‘Strings’ 
flopped (hort ibid, 
Damping of Sounds, ibid, with a foft Body, 
ibid, Urawber , nat (0 founding as cold, ib, 
Water wart , nat fo founding i in the falt as 
Ve Sendak 27% * tbid, 
Loudnefs and foft zef of Sounds, differ from 
Magnitude and Exility, 41. |Londnefs of 
Sonnds, ibid. Quicknefs of Percuffion, 
caufe 7 the louduefs Abid, 
Motions of Sounds, 49, 
Men and Birds, ibid. 
an unequal Sinnd: 43. Metals quenched 
give an biffing Siang ibid. 
Befeand Treble Sounds, ibid. Two canfes of 
ciinlan Sounds. | 
C Ommunication of 8 haan nt 404 
Trequality of Sounds, 42. 
- ingrate, ibid, G rateful, ibid. | Mujeal hia 
and Immvfical Sounds,at pleafure ouely in | fi 
Hummnowng of Bees | 
Treble in strings ibid. Provortion of thé ' a 
Air percrf[ed in Treble and Bafe, 53. | 
Tryal hereof tobe made inthe winding up 
of aString, ibid. 44. Inthe diffances of |: 
Frets,ibid. In the Bores of Wind-Inforim | 
ments. ibid, 
ference,ibid. Several kinds of each ibid. 
Articulation of Sounds, 46: Artienlate 
Sounds ia every part of the dir, ibid, 
PV inds binder not the Articulation, ivid. 
Diftance bindreth, bid. Speating under } 
water hindreth it not, ibid, Articulation | 
requireth a Mediocrity of Sonnd, ibid, 
Ccnfounded in a Room over an arched | 
Interior and Exterior Sounds, as. Their déf- *4 
Vault, ibid. Motions of the instruments \ 
of Speech, towards the forming of theLet- } 
ters, ib. trftruments of Voice, which they 
: are, ibid, 46,47. [narticulate Voices and ¥ 
Inaimate Sounds have a fmilitude with \ 
divers Letters ibid, 
They move in ly 
round,ibid. Aday move in an arched Line, | 
ibid, Suppofed that Sounds move better 
downwards then upwards, i ibid. 50. Tryal 1a 
of it bide, 
Lafting of Sounds, ibid, Sitinds Continue not, 
but renew, ibid, Great Sounds heard a 
far diftance, ibid. Not ¢. in the inftant of ky ; 
the Sound, but long after, ibid, Objett of 
Sight, quicker then Sound, 50,51. Sounds 
vanifh by degrees , which the Objetts of 
fight do not, \bid. The caufethereof ibid, 
Peffage of Sounds through other Bodies, 51. 
The Body intercepting , muft not be very 
thick, ibid. The Spirits of the Body inter. \ 
- cepting . whether they comoperate in the | 
Sound, ibid. Sound not heard ina long 
ee 
> 
Se tee eee 
downright Arch, ibid, Peffeth cafily | ¥ 
through Foraminous Bodies, wid. VV he| 
[mall Crasnies 52 
ther diminifhed in the palfage rails 4 
CUedium of Sounds, ibid. Air the belt Me. 4 
dium, ibid, Thin Air not fo good as thick ia 
Air, ibid. VVhether Flame be a fit Me 
. diumyibid. VVhet ber other Liquors be.\ d 
fide water — “COS OT te 
Figures of the differents Me Sonndsy 52. $ 
ibi 
veral tryals of them 
minty Sounds, 53. tees min 
