t MYSTERY GROWS—Broken • refrigerator and television glass ‘ added to the mystery of broken auto glass in. ^Nebraska. Bill 1 Lechtenberger and Mrs. L. A. Domeier hold honeycombed glass from a store refrigerator at York. (Photos Special to The Sunday Journal and Star)Shattering TV Screen Latest Puzzle Poser1 A television screen shattered in a honeycombed fashion is the ; latest reported puzzler in the , growing mystery of broken glass., Meanwhile, two specialists in I Lincoln advanced theories on the | mystery.’ The • protective glass in front of the 21-inch television tube in a set at the Edwin Witte farm home south of Grafton was discovered honeycombed with small cracks.Members of the family had retired at 10:30 p.m. and the set was in good order. Next day at 7:30 a.m. the mysterious phenomenon. was discovered in the three-month-old machine.ELMER PLETTNER JR., Sut-p ton serviceman, examined the . glass and said he had never seen r anything like it. He forwarded part r of the glass to the manufacturer . for examination.It was the eleventh such mys-» terious case reported in Nebraska ’ in a short period of time.At Geneva, Bill and Wes Lechtenberger still are wonder-I ing what shattered the glass in } the sliding door of the reach-in r ice cream refrigerator in their i dairy store. It happened overnight, the same night the Grafton television screen broke.B. I. HITES, head chemist of the State Department of Agriculture Weights and Measures laboratory,- who examined a sample of the glass from Geneva, said he thought breakage was a result of slow natural physical changes in the glass.He smiled at theories that the occurrence might have been caused by high frequency or supersonic waves or by hydrogen bomb blasts. “Those causes are possible, but not plausible,” he said.He explained that temperature fluctuations over a period of time could have been the cause of breakage. A change in air pressure or some sort of . shock could have triggered breakage, he said.* * *I THE BREAKAGE has occured mainly in rear windows of autos., Guard A-Weapon School Is Held* CAMP RILEY. Minn. fiP—Na-' tional Guard officers from four 1 Midwest states will get the latest information on atomic weapons defense in a special two-day■ school which opened here Satur-■ day.The officers are *rom the 47fh Inf. Div. of Minnesota ar.a North : Dakota and the 34th Inf. Div. of lowa-Nebraska.Guardsmen from Minnesota and North Dakota will summer, train here from June 13-27. Troops from South Dikola will train from June 7-20. Illinois units have from July 10-24 and lowa-Nebraska units Aug. 1-15.The glass in all cases has been of a type such as safety or insulating glass and was curved to some degree in all cases except the Geneva case.Theodore R. Jorgenson Jr., professor of physics at the University of Nebraska, explained he has seen glass of a shatterproof type, manufactured under pressure, which is almost impossible to break. But, if the surface ,is scratched, he said, and the ’pressure “relieved,” the glass shatters. He offered this as a clue in explaining the oroken glass mystery.Other reports of mysterious glass breakage have been made recently at Alliance, Fremont. Lincoln, McCook, Maywood, Norfolk, Oconto, Papillion and York. * * #POSSIBLE EXPLANATIONSfail to disclose why all.the reported cases of breakage should occur in a comparatively short period of time, unless possible breakage was not reported in the past.The present mystery has brought a belated report that the rear window of an auto exploded with a report similar to a gunshot at Verdigre last fall and that a year ago a rear window shattered in another auto at Ver-digre.1X5 A rUZZLER—-These are actual size pieces of honeycombed glass from the Geneva refrigerator.