Scranton, Pa., June 29. - A dynamite explosión early Tuesday morning in South Scranton blew up the business block of íleon Olchofski, a doublé dweiling block owned by him, and a detached house, owned by Michael O'Hara. The business bleek, a two-story building, was torn to pieces. Twenty other houses had all the Windows blown out and piaster torn from the walls. The shock was feit all over the city. The cause of the explosión is unknown, but Olchofski alleges that it was the work cf enemies he made during political and church disputes in that section, he being one of the principáis in troubles which led to a split in the Polish Catholic congregation. Olchofski was seriously injured in saving his wife, and his recovery is doubtful. Following the explosión the wrecked buildings tock fire, but thefiremen kept the flames from spreading. Other Properties Damajjed. The other properties sericusly daraaged were the brick business bleek and dweiling of Charles Johnson, dwellings of A. W. Grambe, Charles Kiefer, John Kline, Michael Joyce, Dr. J. J. Walsh, James Walsh, Adam Elfinger, Bridget Lavelle, Joseph Ownims, Philip Klein, Cari Scheurman and George Gardner, and D. Muses blacksmith shop. In some of the houses the sleeping people were covered with falling piaster. The infant child of Michael Joyee was dangerousIy injured and a little son of John Klein almost fuffocated. The total loss will reach $25,000. The ruins are being cleared to arcertain if there are any victims buried in them.