"First the Eskimo coats his knife blade with animal blood and allows it to freeze. Then he adds another layer of blood, and another, until the blade is completely concealed by frozen blood."
"Next, the hunter fixes his knife in the ground with the blade up. When a wolf follows his sensitive nose to the source of the scent and discovers the bait he licks it, tasting the fresh frozen blood. He begins to lick faster, more and more vigorously, lapping the blade until the keen edge is bare. Feverishly new, harder and harder the wolf licks the blade in the Arctic night. So great becomes his craving for blood that the wolf does not notice the razor sharp sting of the naked blade on his tongue nor does he recognize the instant at which his insatiable thirst is being satisfied by his own warm blood. His carnivorous appetite just craves more - until the dawn finds him dead in the snow!"