He experimented once more on another raccoon, with a smaller dose; the raccoon fell asleep, and slept like a top for fifteen hours, at the end of which time he woke up as if nothing out of the common had happened.

Sebastian fell back upon rabbits again, with smaller and smaller doses.

It was no good; the rabbits all died with great unanimity, until the dose was so diminished that it did not send them off to sleep at all.

There was no middle course, apparently, to the rabbit kind, lethodyne was either fatal or else inoperative.

So it proved to sheep.