Occupants of the craft were seen. Physiological effects were noted. Telepathic phenomena were said to have occurred. Traces found.

One red-orange domed disc, about 80 feet across, was observed by one male 73-year-old witness at a house for 18 seconds. A buzzing sound was heard. Two 5-foot-tall bulky beings, each wearing a Michelin-man suit, were seen.

Ventura Maceiras, 73-year old gaucho, was sitting near his shack with his dog and cat, drinking mate, when his transistor radio failed. He then heard a loud humming noise, "like angry bees," and looked up to see an object 70 to 80 feet in diameter hovering overhead some 10-12 meters over a grove of eucalyptus trees, emitting a powerful light. Around this object, which was at first red-orange and then became purple, an enormous "wheel" was spinning. In its upper portion he could see a spherical cabin with two windows, and in one window was visible from the waist upwards a figure wearing dark gray clothing made of inflated "rolls," joined together, similar to our astronaut's space suits. On this being's head was a helmet with a transparent visor and a tube that ran to a box on his back. With a shower of sparks, the UFO tilted toward Maceiras, and he could now see a second occupant, with identical features and clothing. Their eyes were slanted, their faces very flat, and their mouths merely slit like lines. Behind them he could see a small flag or insignia showing against a blue background a crowned seahorse followed by symbols resembling "S C Y." There was also a long panel bearing "a lot of instruments and clocks." Then a powerful flash of light came from the underpart, completely enveloping the cat, and temporarily blinding the witness. The humming grew louder, and the object became blue-green, then moved away, sinking to a height of only 12-20 feet above the ground. It moved off toward the main road, leaving a strong odor like "sulfur or arnica." Maceiras was not frightened---in fact he called out to the occupants of the object to come down and share his mate. After the encounter, his cat disappeared, to return only after 48 hours, her back still showing marks of burns; she now shunned the site of her misfortune. Tops of the eucalyptus trees at the site were scorched. Maceiras experienced severe physiological after effects; diarrhea, nausea, loss of hair, and severe headaches, all lasting about two weeks. He also had some trouble in speaking, and his eyes watered for a few days. Six weeks after the event, he was feeling all the stronger for it, and in fact was rejuvenated; he began cutting a new set of teeth in his upper gums. These effects were to continue.

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