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Show Shooting Stars Are to Be Seen Evening of May !8 Pasadena, Cal, April 23 Halley's comet Is now plainly visible from the summit of ML Wilson. Professor Adams, Ad-ams, who has charge of maklag tho observations, said today that the spectrum spec-trum showed the head of the comet to be surrounded bv cyanogou gas, which is a combination of carbon and nltrosen. The tail Is composed of hydro-carbon gas. a mixture of carbon car-bon and hydrogen. In some part,on gas will prevail, wiillo In others tho other Is predominant. The extensive preparations are being be-ing made cn Mt. Wilson for observing observ-ing the expected electrification of the earth's atmosphere on May IS, when the comet will cross the sun and tho oarth pass through tne great tall of the wanderer. It is believed the elcc-trhlcation elcc-trhlcation of tbe earth's atmosphere .will ba disturbed. then, but hoys. much... or la what way is uot known Ou the eveniug of May IS, and also on the evening of May 19. according to Mt. Wilson scientists, there probably prob-ably will bo a' wonderful display of shooting stars. This will occur just before the comet crosses the sun. on May IS, or just after. On that date It will be Impossible to sea the comet from Mt. Wilson, but It will be visible In tho middle of the Pacific ocean. After May 19 the comet will be faintly visible In tho eveuiug for a few days and then pass out of sight for another seventy-flvo years. Pasadena, Cal.. April 23. Prof. Adams, Ad-ams, who has had charge of the observations ob-servations of Halley's comet at the Carnegi1 observatory on Mount Wilson, Wil-son, said today that It became visible at 3:30 o'clock In the morning and passed out cf sight moving up Into the f.ky rapidly until the brl?htn?ss of the rising sun prevented further obser atlons. The head of the comet Is quite larg- and tho tall appeared millions of miles long. The comet 1 only one tenth tho brightness of the planet Venus, the morning star. The color tf the comet Is a bright yellow and tbe tall ha the same coior. also It makes a greu color and It takes a greenish cast a3 It spreads out. |