"Abel at first looked rather foolish, but quickly recovering herself,
said,--

"'All vegetable substances are not proper for food: you would not taste
the poison-oak, or sit under the upas-tree of Java.'

"'Well, Abel,' Eunice rejoined, 'how are we to distinguish what is best
for us? How are we to know _what_ vegetables to choose, or what animal
and mineral substances to avoid?'

"'I will tell you,' he answered, with a lofty air. 'See here!' pointing
to his temple, where the second pimple--either from the change of air,
or because, in the excitement of the last few days, he had forgotten
it--was actually healed. 'My blood is at last pure. The struggle between
the natural and the unnatural is over, and I am beyond the depraved
influences of my former taste. My instincts are now, therefore, entirely
pure also. What is good for man to eat, that I shall have a natural
desire to eat: what is bad will be naturally repelled. How does the cow
distinguish between the wholesome and the poisonous herbs of the meadow?
And is man less than a cow, that he cannot cultivate his instincts to an
equal point? Let me walk through the woods and I can tell you every
berry and root which God designed for food, though I know not its name,
and have never seen it before. I shall make use of my time, during our
sojourn here, to test, by my purified instinct, every substance, animal,
mineral, and vegetable, upon which the human race subsists, and to
create a catalogue of the True Food of Man!' ...

"Our lazy life during the hot weather had become a little monotonous.
The Arcadian plan had worked tolerably well, on the whole, for there