unconscious living being. I need not describe the Earthman, since the form and appearance of this race have become familiar to all Martians from the photographs and descriptions which we brought back from Earth. I will only mention that this specimen was a male, and consequently was rather hairy about the lower portion of the face as well as on the top and back of the head. Zesmo made no comment, but popped his eyes in and out of his head at an expressive rate. "Here's your Earthman!" chortled Ikleek gleefully, tapping on the creature's metal chest-protector. "He's only wearing armor, a great deal like a spacesuit." "Maybe he'll die if you leave his helmet off," exclaimed Zesmo in alarm. I picked up the helmet and examined it. "His armor isn't airtight," I informed the company. "It must be worn for some other reason." We were all considerably puzzled by this, and determined to revive the Earthman as soon as possible, in order to question him on this subject and others. With some difficulty we carried him back to the ship. Unable to use drugs, due to the possibility of essential differences between Earthly and Martian chemical constitutions, we were forced to resort to purely physical means for his resuscitation; but we were very shortly successful to the extent that the Earthman stirred, opened his lidded eyes, and sat up groggily--then, seeing us crowding about him curiously with waving tentacles and proboscides, uttered an insane yell and attempted to leave the ship at once. It was with much difficulty that we succeeded in overpowering the frantic Earthman without his breaking the glass oxygen helmet which we had placed over his head to allow him to breathe air at the normal Earthly pressure of between fourteen and fifteen pounds to the square inch. With the aid of a dozen members of the crew, however, we eventually subdued him, not without ourselves sustaining some damage. The tip of one left tentacle was somehow broken off in the scuffle, and by the time I had located the fragment and fastened it back on with medicated adhesive to facilitate healing, the Earthman had been strapped to a table and the telepathor set up. Since I was interpreter for the expedition, due to my training in the arts and sciences of telepathy, psychology, and linguistics, I, at once, took charge, checked over the apparatus, and began to