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 way along the table to the opposite end where lay the key to the fetter. Seizing it in a chela he leaped to the floor and scurried rapidly toward the mouth of one of the burrows against the wall, into which he disappeared. For long had the brain been contemplating these burrow entrances. They appealed to his kaldanean tastes, and further, they pointed a hiding place for the key and a lair for the only kind of food that the kaldane relished—flesh and blood.

Ghek had never seen an ulsio, since these great Martian rats had long ago disappeared from Bantoom, their flesh and blood having been greatly relished by the kaldanes; but Ghek had inherited, almost unimpaired, every memory of every ancestor, and so he knew that ulsio inhabited these lairs and that ulsio was good to eat, and he knew what ulsio looked like and what his habits were, though he had never seen him nor any picture of him. As we breed animals for the transmission of physical attributes, so the Kaldanes breed themselves for the transmission of attributes of the mind, including memory and the power of recollection, and thus have they raised what we term instinct, above the level of the threshold of the objective mind where it may be commanded and utilized by recollection. Doubtless in our own subjective minds lie many of the impressions and experiences of our forebears. These may impinge upon our consciousness in