oad 
Ns 
ae 
= 
GUNPOWDER. 
man. finds to be from three to five parts.on 100 of the com- 
pofition. ‘The manufacture of the ie hay when it is any 
is com) The government powder, for all all forts o: 
ord e4 as ae: as for 
time, ater always : eee: 
confi only in the fize of the grains, as the are rate: 
by the eedive ii fieves. A Shed £ a b 
-pipes, running. round and crofling the ae has 
been panty tried ; and thus the poffibility of any in- 
jurious accident fro oan "Over-heating is rere ‘The tem- 
perature of the room, when hea 
a goo OR, 3 is always reweeae by a thermometer hung 
in.the doo 1e ftoves, 
The sh fhould. not be dried too haftily, or with too 
t heat ; for in this cafe fome of the fulphur fublimes out, 
[ons it. will do at a lefs heat than tha 
the intimate ~—— the ingre- 
rom experiment the following i in- 
ise wins + shat the. e ingredien ts of gun-pow rder o} only 
only a thort 
t as acquired.o: very {mall portion of 
its ftrength, fo that its perieStion abfolutely depends on very 
iy cont: and accurate mixture, and. incorporation of 
dients that Se te da that of eit does not 
de on granulation, parates during this 
procefs k ng: as ftrong as. the 
: circumitance is of fo 
much confequence, and is : fo fully confirmed by experience, 
that the char: of powder now ufed for cannon of all kinds, 
have been 1 ed hird in quantity, when this kind of c 
powder i employed.” The barrelling of powder is ufually 
catego oe Cay weathers. aeitte " great im; to 
Count Rumford ( fee Phil. Tranf. vol. Ixxi, 2. 
ai od for pt. 2.) pure 
fued | the following 
gravity of guapowder A large: ante ‘pene with anar- Battle, Crow! 
row mouth, - rms 
Ssipanded.t to one of 
nice 2 hplanees 3 and era 
bi sl lafly wich wae — 
exadtlh: 
hha. 
: = of grnporer determined b: 
of the fame compofition ; ‘the. difference i 
common way by 
goods and: with! a:iiitivel mingle. it: well to cher, it 
in the fun or —* eit Sart 
Epes pee i 
be m sie. mixed well, fo that" 
=. may be dilperised: in the compofition; which may be 
— by cutting the mafs, and then they ce 
a id. 
In cafe the powder be in a manner quite fpoiled, the only 
way is to extract the Rho — water, according to the 
ufual manner, by boiling, ting, evaporating, and cryf- 
tallizing; and’then, with freth fi fulphur and charcval, te make 
it up anew again. 
UNPOWDER, eS pli to. 
where; 2T, all fubj 
for which an indiétment or 
aie II. c. 61, which reduces 
into one all former aéts apse to the making, keeping, and 
Be of gunpowder, no perfon fhall ufe any mill or 
other eagine for the making of gunpowder, in any 
except in mills and other places where the manufaéturing of 
gunpowder {hall & ly carrying on at the time of 
the commencement of this or kin it fhall after 
wards il to se: on fuch a 
Nor under the ao ares fhall a any aia for the e 
of gunpowder, ufe. ~. mill or engine worked with a 
commonly called a * Peftle-mill 5” nor in any _ mill ‘or n= 
3 
any quantity of. ‘einpowdery or materials. to be “made it 
gunpowder, exceedi 
i ed wa ’ as 
from sa Kae ot mill,) any greater quantity of gut 
than fhail be neceffary for the work then carrying on 
