I don't necessarily believe his accounts of how these things are done, as they seem rather different from what we know from other sources. In particular, the adding of fresh alcohol and water seems doubtful.
However, note that he never describes removing any part of the belladonna plant. Never mind, that's fine. I'll settle for knowing the approximate weight of plant material he started with. Even if we assume that all of that is incorporated in the mother tincture, I think it would still give a sub-12C result for running out of material.
The fact is that you can only get a large number of molecules (or ions) to start with if your remedy is a small molecule or salt. Once you start talking about things with MWs of thousands of daltons, you have proportionately fewer molecules in any likely starting weight of material. So, although you can say, I took 1 mole of sodium sulphate, and when dissolved I had 3 moles of ions in total, you can't really say, I took 1 mole of botulinum toxin, in quite the same way, because you'd be talking about tons of the stuff!
The 12C endpoint is based on a reasonable number of atoms in the starting quantity of mother tincture, as I interpret it. If the substance is such that it will dissociate pretty much to its component atoms (like NaCl), then we end up at about 12C. However, you can't then say, but if I took a substance with a huge molecular weight, and started with the same number of molecules of that as I had of the small MW substance, because in that case (I repeat) you'd be requiring several tons of material. Whether or not the remedy substance is large or small molcules, the chances are that the number of atoms in a practical weight of mother tincture will be relatively constant. If the MW is very large, and the substance does not dissociate, then the Avogadro limit will be reached sooner. However, if you start allowing that it can dissociate down to its component atoms, you merely return to roughly the same place you were with your salt remedy, 12C.
I'm still waiting to see what reactions with the solvent might even be possible for any common remedy, then evidence that these actually happen, then evidence that it's the products of these reactions rather than the mother tincture that is biologically active.
Because if so, why bother with all the diluting and succussing? If homoeopaths can show that they have fortuitously hit upon a way to produce novel therapeutic compounds, and that these have a striking efficacy, then why not just synthesise these compounds. Oh, and test them for safety and so on too....
This is getting really silly, I'm off to do some real work with some real analyses of some real molecules.
Rolfe.