I found this interesting, though:
Finally, that natural selection seems even remotely plausible depends on the fact that while species are awaiting further improvements, their current complex structure is "locked in," and passed on perfectly through many generations. This phenomenon is observed, but inexplicable -- I don't see any reason why all living organisms do not constantly decay into simpler components -- as, in fact, they do as soon as they die.
In this passage Sewell stumbles over (but does not stop to examine) a problem with all antievolution arguments involving thermodynamics, even ones as seemingly vague as his own: Life itself "violates" the Second Law far, far more prodigiously than evolution (operating at the rates biologists propose and earth history requires) ever could. Living organisms are basically entropy exporting, or negative entropy concentrating, machines. Evolution is only one of innumerable processes that this organic "negentropy" environment facilitates.
Amazing how disjointed things become when you're either too lazy, or too ignorant peruse them in depth.