2S: 
123. 
124. 
touching 
and Delation 
| Mir sherein. 
~ | which will difcharge a piece without noife, which is a dangerous Pai }- 
Experi ments 
in Con fort, - 
Produétion 5 
Confervation, 
f Sonnds; and 
Jobe offceof the it be empty of matter. This. conceit of bias on y Ree moft bean 
| “Reaueral Hilo; i 
There is aconcelt runneth abroad, that there fhoulab be a Wai it Pa rs 
ment, if it fhould be true: Forit may cate fecrer Murthers, but it f2cme ; 
{co me unpoffible j forif the Airpenr, be driven forth and ftrike the Air open, ie 
\ie/will certainly makea noife. As for the White Powder , (Cif any tuck ho ie 
thing be that may extinguifh or dead the noife) it is like to bea niixture | 
of Petre and Sulphure, without Coal. For Petre alone will not take Fire 
And if any Man think, that the found may be extinguifhed or deaded, | Hi 
difcharging thepent Air, before it cometh tothe Mouth of (he Peece, | it ; 
tothe open Air, that isnot probable; for it willmake more divided founds : 
1 As if you fhould make a Crofs-barrel hollow, thorow the Barret aah 
Peece, it may beit would give feveral founds, both at the Nofe and the | e 
fides. But I conceive, that if it were ron e to bring to pafs, tharthere} 
fhould be no Air pent at the Mouth of the Peece, the Buliect might flie | | 
with (mall or no noife. For firft it is certain, thereis no noife in the Per. 
cuffion of the Flame upon the Buller. Next the Buller, in pieccing’ tho- | 4 
row the Air, maketh nonoife, ashath been faid; and then, if there be no} 
, sient ises that {triketh upon open Air, there isno caufe of noife, and yer the } 
flying of the Bullet will not be ftaid. For that motion (as hath been oft | 
faid) isin the parts of the Bullet, and nor inthe Air. So astryal muftbe | 
made by taking fomefimall Concave of cénal, no more thanyou mean te} 
fill with Powder, and laying the Buller in the Mouth of it half out in the | 
open Air. 
I heard it affirmed by a Man that was a great dealerin Secrets, but he} 
was but vain; That there was a Confpiracy (which him{clf hindred) to have | 
killed Queen Mary, Sifterto Queen Elizabeth, by a Burning-Glaf, wh en the | 
walked in St. ‘Fames Park,fromthe Leads of the Houfe. Burthus het no }. 
doubr, istrue, That if Burning-Glaffes could be brought to agreat ftrength, | 
(as they talk generally of Burning-Glafes, that are able to burn a Navy) | : 
Percuffion of the Air alone, by fuch a Burning-Glaf, would make le 
noife; no more than is found in Corrufcations , and Lighmings Wit out 
FT bunders, of a 
I fuppofe that Imprefion of the Zir with Sounds, asketh a time tobe con-} 
veighed ro the Senfe, as well as the /mprefion of Species vi vifible, or €l lfe they will | 
not bcheatd. And therefore, as the Bullee moveth fo { wift, that it isinvifible, : iq 
fo the fame {wiftnefsof motion maketh it inaudible ; for we fee st the ap- | 
prehenfion of the Eye, is quickerthen that of the Ear. i- 
- All Eruptions of Air, though fmall and flight, give an enticy é found, 
which we call Crackling, Paffing, Spiting, Cc. Asid Bay-falr, and Bay- leaves | 
caft into the fire ; fo in Chefs when they leap forth of the Athcs, fo in| iY | 
green wood laid upon the fire, efpecially Roots; fo in Candles that {pit} 7 | 
flame,if they be wet; foin Rafping, Sneezing, &c. Soin aRofe leaf gather- | | 
ed together into the fafhion of a Purfc, and broken upon the Forchead, Bh i@ 
Back of the Hand, as Children ufe. | 
| 
, et 
"He caufe given of Sound, that it fhoutd be an Hg of the Air (wheres | le 
by, if they mean any thing, they mean Cutting or Dividing, or elfe an | i 
ieeenteaeiae ofthe Air)"is but a term of Ignorance ; ; and the motior 
but a catch of the Wir upon a few Inftances, as the manner is in the 
Philofophy received. And it is common with Men, thatif they have gotten | 
a pretty expreffion by a word ef Art, that expreflion goeth currant, thou ale 
yy 
k: ns f Sg y . a> ve t 
oe Ser > & weil * Beye) a De a ae 4 
