ief from its head as he did so. At the end of the table
there was a panel with its glittering array of switches and electrical
instruments, and Old Crompton observed very closely the manipulations of
the controls as Tom started the mechanism. With the ensuing hum of a
motor-generator from a corner of the room, the four bulbs adjacent to
the table sprang into life, each glowing with a different color and each
emitting a different vibratory note as it responded to the energy
within.

"Keep an eye on Mr. Rabbit now," admonished Tom.

From the body of the small animal there emanated an intangible though
hazily visible aura as the combined effects of the rays grew in
intensity. Old Crompton bent over the table and peered amazedly at the
stump of the foreleg, from which blood no longer dripped. The stump was
healing over! Yes--it seemed to elongate as one watched. A new limb was
growing on to replace the old! Then the animal struggled once more, this
time to regain consciousness. In a moment it was fully awake and, with a
frightened hop, was off the table and hobbling about in search of a
hiding place.

* * * * *

Tom Forsythe laughed. "Never knew what happened," he exulted, "and
excepting for the temporary limp is not inconvenienced at all. Even that
will be gone in a couple of hours, for the new limb will be completely
grown by that time."

"But--but, Tom," stammered the old man, "this is wonderful. How do you
accomplish it?"

"Ha! Don't think I'll reveal my secret. But this much I will tell you:
the life force generated by my apparatus stimulates a certain gland
that's normally inactive in warm blooded animals. This gland, when
active, possesses the function of growing new members to the body to
replace lost ones in much the same manner as this is done in case of the
lobster and certain other crustaceans. Of course, the process is
extremely rapid when the gland is stimulated by the vital rays from my
tubes. But this is only one of the many wonders of the process. Here is
something far more remarkable."

He took from a large glass jar the body of a guinea pig, a body that was
rigid in death.

"This guinea pig," he explained, "was suffocated twenty-four hours ago
and is stone dead."

"Suffocated?"

"Yes. But quite painlessly, I assure you. I merely removed the air from
the jar with a vacuum pump and the little creature passed out of the
picture very quickly. Now we'll revive it."