Returns CD’s pamphlets.

Wishes CD would work out further what keeps certain species immutable for great periods.

Feels himself a convert, but cannot go all lengths with CD.

Feels some reviewers distort CD’s argument.

Natural selection implies that a form remains unaltered unless an alteration is to its benefit. This is not inconsistent with some forms remaining stable for long periods. Natural selection must at present be grounded entirely on general considerations. Of details we are still greatly ignorant.