1 adjectives to describe indurations

But on this morning, again a sudden rush of tears had streamed down her cheeks, and she had begun to stammer words without any connection; which seemed to prove that in the midst of her senile exhaustion and the incurable torpor of madness, the slow induration of the brain and the limbs was not yet complete; there still were memories stored away, gleams of intelligence still were possible.

1 adjectives to describe  indurations