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UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
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UBUMENYI
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Ox Gall Liquid Clarified with Alum and Salt, Ure 1839
Ox gall makes watercolours spread evenly and fixes them, but raw it stains with its own green. Andrew Ure (1839): boil and skim the gall, dissolve alum in one half and salt in the other, let both settle three months, then mix the clear parts in equal measure: the colour falls out and leaves the gall clear.
The picture: our diagram of the two settled halves mixed to a clear liquid.
Utangiye
Three months
Amabwiriza
1
1
Boil and skim
Boil and skim
Boil the fresh gall and skim it. Divide it into two equal halves.
Ibikoresho by'iyi ntambwe:
Indurwe nshya y'inka2 litiroIbikoresho bikenewe:
Inkono Nini
Ikiyiko gifite utwobo
Inkwi
Uturindantoki tw'ikawusu2
2
Alum and salt
Alum and salt
Into one half stir powdered alum and keep it on the fire until dissolved; into the other, common salt, dissolved with heat (step 5). Cool each and bottle them separately, loosely corked.
Ibikoresho by'iyi ntambwe:
Alumu (Alumu ya Potasiyumu)50 g
Umunyu w'ameza50 gIbikoresho bikenewe:
Isekuru n'Umuhini
Umunzani w'ibiroInkono Nini
Amacupa y'ikirahuri afite ibipfundikizo3
3
Settle three months
Settle three months
Leave both bottles about three months in a moderately warm place, until a thick sediment has fallen and the liquid is clear.
Ibikoresho bikenewe:
Amacupa y'ikirahuri afite ibipfundikizo4
4
Mix and clear
Mix and clear
Pour off the clear part of each and mix them in equal measure: the remaining colour curdles and sinks. Let it settle, pour off the clear gall, and filter it through paper if you want it finer.
Ibikoresho bikenewe:
Amacupa y'ikirahuri afite ibipfundikizo
Akayunguruzo k'Ikirahure Gafite Umugozi
Urupapuro rwo Kuyungurura5
5
Ure's measures
Ure's measures
Gupakira ikaye ya Jupyter…
Ibikoresho
3- 2 litiroUmwanya
- Umwanya
- 50 gUmwanya
Ibikoresho bikenewe
9- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
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