Show Coal Probe Will Open Ope Open Open-on on n T Tuesday sd y W WASHINGTON ASHINGTON D Do C. C Feb Fab 29 I CAP AI AP Investigation of ot of the underlying underlying under under- I lying cl causes causs of f the depression i ithe In III i the Uie Pennsylvania la West elSt Virginia and Ohio coal fields will be started be-started started next T Tuesday by the te senate Int Interstate Interstate Inter Inter- r- r state eoin commerce ne committee In making this announcement to today to to- da day Chairman V Watson said that John L. L Lewis president of ot the United Mule Workers o of America would be the first witness witness' called Inthe Inthe in inthe the Inquiry w which is to go fully tully into conditions In the central bituminous bituminous bitu bitu- minous field where union miners have been ou out of ot work work for for tor nearly a a. year ear |