Making and Knowing
A minimal edition of BnF Ms Fr 640

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Gardener

To sow melons properly, it must be the end of a moon cycle, because otherwise they would sprout too many leaves and not bear much fruit. Every two fingers, make small holes with a small pickaxe and, in each, put two or three seeds. Then, take very fine earth and lightly fill the holes with it. Afterwards, spread the thickness of one thumb of ‘havets,’ that is wheat chaff, over everything, so that when the rain comes, it does not beat the earth and prevent their birth. ‘Hanets’ attract field mice that eat the seeds, and to prevent this, they must be moistened with a decoction of wormwood.

Glassmaker

Some do not lay gris d’escaille on the glass to work on it, but trace straight on the glass with noir à huile. However, it is important that the wood be degreased, because if it has even a little grease on it, the color will not take at all. And even, if the working glassmaker has a stink from his nose or his mouth la, & he breathes on the glass, the color will not take on it. Those who came up with the invention of working in small works of softened enamels use only azure enamel, which is blue, & esmail colombin, which is the color of purple, which they soften with rocks or lead glass. As for yellow, they make it from silver, red from sanguine, as is said elsewhere, black & gray & shadows from scale black, either strong or weak, carnation from light sanguine. Green is made first from yellow, then they overlay azure enamel, either strong or weak, depending on whether they want to make it bright or dark.

Yellow Amber

It is cut with a file, then one passes a certain pulverized salt across the surface, which an Englishman called desramonet. But I believe that this was pulverized pumice stone, for it had the harshness of arène. And with a taut cord, he polished his amber, then passed tripoli from Bretagne on it with the finger; others used a piece of leather or a cane. Amber loses its color if an unhealthy person wears it, & becomes whitish. But to restore it, it needs to be soaked for one night in urine, then boiled a little in it.