Century LLL, 
AISI SIRE RED «ltl AA TONE aR 
 |likewife of an Angular Pipe; and fee what will be the effects of thefe feverai 
jSounds. And fo again of a Circular Pipe : As if you take a Pipe perfedt 
{round, and make a hole whercinto you fhall blow, and anotherhole not 
_}far from that; bur with a traverfe or {top between them : So that your 
| breath may go the, Round of the Circle, and come forth at the fecond hole. 
) You may try likewife Percuffions of folid Bodies of feveral Figures : As 
4 Globes, Flats, Cubes, Croffes; Triangles, éc. And their Combinations + as Flat 
| againft Flas, and Convex againtt Convex, and Convex againtt Flat, &'c. And mark 
| well the diverfities of theSounds. Try alfo-the difference in found of feve- 
_| ral Graffitudes of hard Bodies percuffed, and take knowledge of the diver- 
‘fities of thefounds. I my felf have tried, That a Bell of Gold yieldeth an ex- 
| gellentfound, not inferior to that of Silver or Braf, but rather better, Yer 
F | money of Silver. ? 
The Harp hath the concave, notalong the ftrings,butacrofs the ftrings ; 
| and no Jnftrument hath the found fo melting and prolonged, as the Irifh Harp. 
| So asl fuppoie, that if a Virginal were made with a double Concave; the 
} one allthelength as the Virgmal hath, the other at the end of the ftrings, as 
| the Harp hath; it muftneeds make the found perfecter, and not fo fhallow, 
{and jarring. You maytry it without any Sound-board along, but onely 
_| Harp.wife, at one endof the ftrings; or laftly, with adouble concave, at 
_| each end of the ftrings one. : 
| rere is an apparent. diverfity between the Species Vifible and Audible, in 
‘Z this. That the Vifitle doth not mingle inthe CMedium, but the CAudible 
| doth. For if we look abroad, we fee Heaven, a number of Stars, Trees, 
| Hills, Men, Beafts, atonce; andthe Speciesof the one, doth not confound 
| the other: But if fo many Sounds come from feveral parts, one of them 
| would utterly confound the other. So we fee, That Voices or Conforts of 
| CMafick, do make aharmony by mixture, whichColours donot, Ir is true 
| neverthelefs, that a great light dtowncth a{maller, that it cannot be {een ; 
‘ | And I fuppofe likewife, that if there were two Lanthorns of Glafs, the 
| one a Crimfin, andthe other an Azure, and 2 Candle within either of 
|} them, thofe coloured lights, would mingle andcaft upon a White Paper, a 
| Purplecolour. Andevenin colours, they yield a faint and weak mixture ; 
| for White Walls make rooms more lightfome, than Black, &c. But the 
; | caufe of the Confufion in Sounds, andthe Inconfufionin Species Vifible, is, 
33 
_ | we fee that a piece of money of Gold, fourdeth far more flat than a piece of | 
223, 
224. 
Experiments 
in Confort, 
touching the 
Mixture oF 
Sounds, 
| as the Sun that of aGloworm, as well asa great found drownctha leffer, | 
| For that the Sight workethinright Lines, and maketh (everalCones; and | 
| fo there can be no Coincidencein the Eye, or Vifuai Point: But Sounds that 
| move inoblick and arcuate Lines, muft needs encounter, and difturb the one 
- | the other, 
4 The fweeteft and beft Harmony is, when every Pact or Inftrumentis 
i not heard by it felf, but a conflation of them all, which requireth ro ftand 
_| fome diftance off. Evenas it isinthe mixture of perfumes, or the taking of 
_j thefmells of feveral Flowers in the Air. . 
‘ isa Thedifpofition of the Air, in other qualities; except it be joyned with 
| Sound, hath no great operation upon Sounds - For whether theAir be 
_|lightfome or dark, hot or coldg quiet or ftirring, (except it be with noi/e) 
| fweet-fmelling, orftinking, orthe like; itimporteth not much. Some petty 
_ | alteration or difference it may make, : 
] 
Fz: But 
er | 
226. 
