The yellow/blue cube in f102v2

[-JKP-]

Perhaps this can be viewed as a question of which of these things is not like the others. Isn't it generally perceived that this is a "recipe" section and the items illustrated are ingredients, not *products*. Soap would be a product, not an ingredient.

Meanwhile I seem to recall Lapis was an occasional ingredient in the manufacture of certain medical treatments, IIRC.

Recipe section is as good a guess as any other, if you are compiling a list of the various possible functions, but...

there's no proof or even strong evidence yet that this is a recipe section. Recipes (whether culinary or medical) were not typically illustrated in the middle ages. They were almost always textual.

It's certainly possible that they are ingredients, maybe even the most likely explanation, but I can think of a couple of other possibilities so... until more is known, I personally prefer to call it the small plants section (as in small-drawn plants) and not assume its function.