While the machine was being readied, Baren Darl explained its workings to me in some detail. Meanwhile, the Earthling continued to sip at the jug which supposedly contained sufficient poison to eliminate an average large Terran city. "As you know," Baren Darl told me, "the mind, whether of Earthlings or Martian type, is capable of being either stimulated or depressed. For hundreds of decals our race has possessed chemicals capable of such depression or stimulation. However, to my knowledge, this device is the only one yet developed which can suppress the intelligence quotient of anyone within an area of many square miles. "The plan for utilizing it is a simple but effective one. When we confront a body of Earthling soldiery, our men need only to turn on the I.Q. Depressor to turn the enemy into brainless idiots. Their defeat would then obviously be quite simple." "Very well," I told him stiffly, "let us proceed to try it on this Earthling." The device seemed quite elementary in construction. Baren Darl activated it by the simple flicking of a switch. We ourselves, of course, were immune to its workings since it was tuned only to the Earth type brain. "It is now in operation?" I asked Baren Darl. "Definitely. Watch the Earthling." "I am watching." The supposed top authority on Earth and Earthlings approached the specimen and eyed him carefully. The following conversation ensued: Baren Darl: "How do you feel?" Earthling: "Huh?" (Baren Darl seemed pleased at this response, and, indeed, it would seem that the subject was on the verge of idiocy.) Baren Darl: "How do you feel?" Earthling: "I guess I feel fine. Yup, yup. Feel fine.—How'd you feel, stranger?" Baren Darl (scowling): "Does your head feel somewhat different? Does your mind seem more sluggish?"