In 1925 Don Wood and another American landed in a two-seater plane on Flat Mesa, near Battle Mountain in the Nevada desert. While walking about the top they noticed something coming in to land. It was round and flat like a saucer, and about 8 ft across, with a reddish underside. It skidded to a stop about 30 ft away.
They walked up to it and found that it was an animal like nothing they had seen before. It had a mica-like body, but no visible eyes or legs. It was hurt, and as it breathed the top would rise and fall making a half-foot hole around it like a clam opening and closing. A hunk had been chewed out of one side of the rim, from which a metal-looking froth issued. After a 20-minute rest, it started pulsating again, and grew very bright except where it was hurt. It tried to rise up, but sank back again.
Suddenly the men saw a much larger animal, 30 ft across, approaching. It settled on the smaller one with 4 sucker-like tongues. Then it grew too dazzling to look at, and both rose straight up and shot out of sight in a second, at an estimated speed of 1000 miles an hour. They left behind an awful stench. The frothy stuff the little creature had ’bled’ looked like fine aluminum wire, and there was more frothy, wiry stuff in a 30-ft circle where the big creature had been. This material finally melted in the sun. Don Wood did not publicize this incident until 1959 as he doubted whether anyone would believe him. He pointed out that the larger animal would appear as a 30-ft light if seen at night 
19. The Cosmic Pulse of Life, pp. 108-11.
Does anyone know of more references to this incident? It's fascinating.