In reply to:

the convulsions are
clonic but are soon followed by tonic
contractions similar to convulsions due to
tetanus.

What are these 'tonic' and 'clonic' convulsions characterized by?

And what is that poison that can be found in the bark of the black cherry tree, I believe, that was used by that poisoner, Jim James or Jones years ago in that colony in which so many people poisonsed themselves?