Show 7 7 james harris rogers of md bid Is th the ln Inventor vento of a a radio system by which wireless messages may bi be sent andrec and received elved under ground or water lihosit the use of aerials the chief and obvious advantage of thi the Is that it eliminates or greatly reduces static disturbances both voluntary and involuntary which have ht hitherto herto i interfered with the completa com bom success a of wireless this Invent invention ingentio io n was practically perfected when th the united states entered the war and mr rogers promptly offered it to the DR navy vy it was adopted and played no small part in winning the war in this photograph mr rogers ts Is shown with 06 apparatus which he be has bas installed in his own premises where he has lia received r a messages from berlin parts paris and rome at ahls feet Is asdall aa small ease cas which contains a portable outfit tor for setting up anywhere a wire can b be stuck in alie ground |