GUNPOWDER 
buen ding to the method which the author had previoufly jn “refpedt of pemigeioste of war, and of commerce or 
deferibed in “s fame paper; ) and the recoil is to ‘be care- confumption thereof being jessie) s that ‘it will deferve, 
n.the ribbon. When this oe Rae ore has a more particular detail. Tio make gunpowder duly thens 
preter ee being alike ; and if the ribbon ib drawn pra as falt be dea n’ forth ; this a; ie ut it into-a eter an 
‘far, or farther than-the proof-mark,’ the solder’ 1S as good that on a Fables with a moderate fire, which gradu ually in- 
er better than the vores he if it falls thort of that creale till it begins to {moke, evaporate, lofe its humidity,’ 
diftanee, it is worfe than the ftandard, and to be re- and grow very white: it muft be kept continually flirring 
jected. For the greater the Bie re 18 withe which ns bullet with a ladie, for fear it fhould return to its former 
18 impelled, the greater will be the recoil; and when the whereby its greafinefs will be taken away ; after that, fe 
recoil is the fame, the velocities of the ballets are — and much auhenie to be —- into the kettle ee — cover the 
the owder is of the fame OR of — * the e qu antity nitre ; and when 
when the velocities are equal, as VV to vv; V- g cent Fedak oan 6 act it run, end: int rth comiig 
patina eat aaah ean ig powder, and the appear r yellow, and that which remains.of a reddifh colour, 
felocit) one the are equal, and it may be conc luded to be fit for the purpofe. But in cafe 
the weight and dimenfions of the bullet are the fame, and the {ame be foul and impure, it mey be purified in this 
when they are difeharged from the fame piece. The weaker manner: melt the fulphur in a large iron , or pot, over 
powder therefore is as much worfe than the-ftronger as VV a ren ; flaming ; ther 
1s greater than vv; or the comparative goodnefs of po i 
ler, of. Rgrets oF Rrcapiig- sense the Syemewet  qlany take ste cfenthy after from the fire, and ftrain it 
the velocities of the bullets when the charges are equal. through a linen cloth, letting it pafs a ee 
The author, eftimating t the comparative goodnefs of govern-; wilt it be pure; die grofs filthy matter remaini 
ment powder with that of double poosf proof battle — fee the cloth. See SuLpuur, and aero sins tached 
Barrie), found, by the medium of feveral trials, that ~ For the charcoal, the t ees fuch fhould- be 
double proof battle powder is*better ethan goverment pow chofen as is ‘lar Gaaitend from knots, well burnt 
der in the proportion of 1.2036 to 1, or y of 6to5. But and cleaving. Bis pacientes - spa 
if inkead of weighin the powder, we eftimate the quantity charcoal of light woods ectigcieratip agai 
of the charge by me rompennave iitapeh meth of battle power but M. Beaumé affirms, from experience, that the charcoals 
meee: x t powder Sar brah prone — have been well made, afe 
i 
: 
: 
F 
Pt 
5 
s 
ck si the quantity ‘elalic: vapour expelled coer its 
et "UL. ae 
Piuatle -2henpewdey tied ainkarcie-of falphur- aad: stall 
"in that “whieh: are very: inflammable fubftances, -with (alt-pet 
mb th a eB SES tr 
