Show Coal Investigation Authorized Washington. President Hnrding Friday signed the Rorah-Wlnslow bill providing for a federal Investigation of tho ipal Industry nnd the Cummins-Wlnslow Cummins-Wlnslow bill provldldlng for control of coal prices during the winter by the extension of the omburgo and priority pjwers of tho interstate commereo commission. Hoth measure? wore urg-e'd urg-e'd by tho president In his recent mes. sage to Congress on tho acute Industrial Indus-trial situation growing out of the coal nnd rnllrpad strike |