|Cupric sulphate||2.5 g||Mordant|
|Potassium aluminum sulphate||15 g||Mordant|
|Distilled water||100 mL||Solvent|
Place the dry powders in a mortar and grind together.
Add sufficient water to make a paste.
Leave for 48 hours, then add the remaining water.
Leave for a further 12 hours, and filter.
Gray, Peter. (1954)
The Microtomist's Formulary and Guide.
Originally published by:– The Blakiston Co.
Republished by:– Robert E. Krieger Publishing Co.
Hogg, J. (1883)
Routledge, London, England