 What does hatcher mean when he says, “to vibrate the atmosphere by means of resonating organs in his breathing passage.”
Whatever it was, he had no business in it; for five minutes before he had been spaceborne, on the Long Jump from Earth to the thriving colonies circling Betelgeuse Nine. Hatcher, like McCray, was an adventurous soul, young, able, well-learned in the technical sciences of his culture. Hatcher's principal task at this moment was to run the "probe team" which had McCray under observation, and he was more than a little excited. Hatcher ordered silence, studying the specimen from Earth. Hatcher hurried through the halls of the great buried structure in which he worked, toward the place where the supervising council of all probes would be in permanent session.
 To speak
 To speak  To sigh  To panic  To breathe