Sambucus spp. Elderberries

You know when you think you know what you're talking about and then 'Eureka!' you decide your assumptions/theories/plans were wrong. Oops!

I keep reading about anthocyanin pigments (Neven 173-4) and how they can be produced by various things including elderberries. All of a sudden I went back to a different book and my mind opened up. Sambucus spp. are not always what we want to grow to make Elderberry wine or pie... 'Dwarf elder', which is what one of the medieval treatises calls for, is a different plant!

Sambucus ebulus
Dwarf Elder, otherwise known as Danewort "is the most active pharmacologically... it's fruit should be considered poisonous. The dark purple berries are certainly violently purgative; in the Middle Ages both these and the roots or root bark were used as such.
...
The Anglo-Saxons and Gauls employed Dwarf Elder berries as a blue dye, and this is now the main use for this herb." (Stuart 258)

So... I guess I want to try to grow S. ebulus too!

Smith and Hawthorne 41

I shall have to mine the references of Encyclopedia of Herbs and Herbalism (Stuart) before I decide that their S. ebulus dye claim is accurate. I've just found another source that uses S. niger for their blue (Wallert 1993). And thus, we're back to common names making research difficult.

lulax means indigo

Looking for another 'vegetable blue' I found this reference. I have seen 'lulax'  few times and see that Mappae Clavicula as translated by Smith and Hawthorne has this note:

or does it...

perhaps it just means a certain color blue?

Smith and Hawthorn 55

'vergaut'? Blue and yellow make green!

The term 'vergaut' was introduced to me by Elena Wyth when she asked a question about mixing indigo and orpiment on Facebook. I hadn't come across it before, so I went to the books!

There seem to be many medieval instructions for mixing orpiment and indigo but few call it vergaut, as far as I can see. Read more below to see what a brief search helped me find.

chalk of eggshells

Book of Secrets

sal ammoniac

Many of the recipes in medieval MS contain references to sal ammoniac. So, what is it anyway? The glossary in Merrifield's Medieval and Renaissance Treatises is helpful, once again!

Ammonium chloride, NH₄Cl.

washing soda from baking soda

So, you having baking soda, NaHCO3, right? You can therefore make washing soda, also called soda ash and soda crystals, Na2CO3. It's very caustic so always wear gloves when you deal with chemicals, please!

Check out this blog to find out how! 

And this one to really hear about washing soda and soda ash.

Exploring "Italian pink" and "Dutch pink"

"Dutch pink"and "Italian pink", probably actually green and yellow pigments, are mentioned to in a note in De Arte Illuminandi (Thompson and Hamilton 43).

68 For the identification of these prugnameroli as buckthorn berries (buckthorn = It. spincervino, spino gerbino), fruits of varieties of the buckthorn, Rhamnus, see Cennino, ed.cit., II, 32, n. 1. Two pigments were and are derived from Rhamnus berries: a yellow and a green. The product of the unripe berries is the Giallo santo (cf. M. P. Merrifield, op.cit., I, clxiv), known in English by the extraordinary names, "Italian Pink" and "Dutch Pink." The juice of the ripe berries yields the pigmentum e fructibus rhamni catharticae, succus veridis, listed by H. L. Gerth van Wijk, Dictionary of Plantnames, I, 1135, among the technical products of R. catharticus, the color known in English as "Sap green," the Italian verde di vescica (so called because the inspissaded juice was preserved in bladders), the Safftgrien of Valentin Boltz, who specifies, ed. cit., p. 75, that it is to be made from "krutzber, die man auch nent hagenberlin," gathered "ungeforlich vierzehn tag vor Michaelis" (that is, about September 15). For the yellow color, ibid., p. 72, "Du must gar eigentlichen warnemmen der zyt diser hagenberlin im Augustmonat, daz sy nit zu satt oder zu alt werden." If, therefore, in Alsace, the color came out yellow if the berries were gathered in August, and green if they were gathered about the middle of September, we may probably assume that the quality of green yielded by these Rhamnus fruits was not entirely definite. It must have varied in it's content of yellow, according to the date and nature of the season. (Thompson and Hamilton 43)

As well as the Introduction of Medieval and Renaissance Treatises on the Arts of Painting: Original Texts with English Translations by Mrs. Mary P. Merrifield.

Giallo santo was a kind of yellow lake, which was made from various plants. It was sometimes prepared from the berries of the buckthorn (note leads to p 708, her translation of the Paduan Manuscript recipe) (spincervino)...
The French call pigments of this description "stil de grain," and include under them not only these pigments which are a pure yellow colour, but such as incline to green. The English term for this class of pigments is or was "pink" Thus we have "Dutch pink," "Italian pink," "brown pink," &etc. (Merrifield I, clxiv)

So, for tonight, that is my search and citation of sources. Pigment Compendium also references Italian, Dutch and brown pink but that transcription is for another day.