About a fortnight before the trial he writes to him thus:-- '_21st August_, 1792.
'MY VERY DEAR PETER,--I have this day received yours of the 18th, and am happy to find by its contents that, notwithstanding your long and cruel confinement, you still preserve your health, and write in good spirits.

Preserve it, my dear boy, awful as the approaching period must be, even to the most innocent, but from which all who know you have not a doubt of your rising as immaculate as a new-born infant.

I have known you from your cradle, and have often marked with pleasure and surprise the many assiduous instances (far beyond your years) you have given of filial duty and paternal affection to the best of parents, and to brothers and sisters who doated on you.

Your education has been the best; and from these considerations alone, without the very clear evidence of your own testimony, I would as soon believe the Archbishop of Canterbury would set fire to the city of London as suppose you could, directly or indirectly, join in such a d----d absurd piece of business.

Truly sorry am I that my state of health will not permit me to go down to Portsmouth to give this testimony publicly before that respectable tribunal where your country's laws have justly ordained you must appear; but consider this as the _touchstone_, my dear boy, by which your worth must be known.