[Ravensfort] Ink recipe

[James Northfolke]

I thought this was cool-j

 From Drawing magazine: New York artist Karen Gorst, who teaches 
medieval techniques of drawing and calligraphy, offers her formula for 
making ink:

3 parts boiled oak galls
2 parts ferrosulfate
1 part gum arabic

Boil the oak galls and water to the consistency of tea and let sit for 2 
to 3 weeks to ferment.  Add ferrosulfate and strain liquid this should 
turn black immediately.  Add gum arabic.