G L A ( 482 ) G L A
Mixture.
Refult.
A.
Silex . • • • •
Boracic add . . .
* j»a hard tranfparent glafs—fcintillant.
A.
Silex.
Boracic acid .
• • •
4 a white opake melted porous mafs—fcintillant..
A.
Silex.
Calcined borax .
3 a tranfparent glafs—hard and fcintillant.
A.
Silex . . . . .
Calcined borax . .
4 l a mafs refembling agate—but perfectly fuled and fcin-I. / tillant.
A.
Silex.
Sulphat of foda .
• • •
j a green fcintillant glafs.
A.
Silex.
Nitre.
3^ a foft green tranfparent glafs.
A.
Silex.
Common fait . .
. . .
fcoria—the crucible entirely deltroyed.
M.
Silex.
Phofphat of foda and
ammonia
1. la, white opake, puffy, vitreous mafs, deliquefcent and
2. [ reddening litmus.
M.
Lime.
I la white fpongy opake mafs, crumbling between the
2./ fingers.
A.
Chalk.
2 1 partly fufed—the reft pulverulent—the crucible ftrongly
I. f corroded.
A.
Chalk.
* well-fufed, polilhed, black fcintillant glafs.
A.
Chalk.
4 remained a white powder.
M.
Lime.
Borax.
1 la fine tranfparent yellowilh glafs—the crucible ftrongly
2 / corroded.
A.
Chalk.
Borax.
4. ^a well-fufed, black, fcintillant polilhed mafs.
A.
Chalk.
Borax . . . . . .
3 ^ a yellow fcintillant glafs.
A.
Chalk.
Boracic acid .
^ ^ a yellow glafs—run through the crucible.
A.
Chalk.
Sulphat of foda .
. . .
3' y a hard yellow fcintillant glafs.
A.
Chalk.
Sulphat of foda .
^ a hard brown fcoria—the crucible totally deftroyed.
A,
Chalk ......
: : :
j j> a hard yellow glafs.
A.
Chalk . . .
Common fait . .
^ a yellow fcintillant glafs—the crucible entirely deftroyed
M.
Lime.
Phofphat of foda and
ammonia
2 |> a white opake crumbly mafc.
M.
Alumine ....
• . .
i \a grey opake ill-fufed frit, not cohering to the crucible2. / and deliquefcent.
A.
Alumine . ..
Carbonat of foda and potafhin all proportions from i to
4)
^remained unmelted and uncohering.
12.J
A.
Alumine ....Carbonat of potalh
•
j> partially melted, but foft and friable.