Washington inventor says ignition interference from airplane engines is a myth. Ignition interference from airplane engines on aircraft is largely a myth according to C. Francis Jenkins, Washington, D.C., inventor who has designed a radio receiving set which he does not pick up noises from a flying power plant. In this photograph is shown Mr. Jenkins (right) and his laboratory assistant

The Harris & Ewing, Inc. Collection of photographic negatives includes glass and film negatives taken by Harris & Ewing, Inc., which provide excellent coverage of Washington people, events, and architecture, during the period 1905-1945. Harris & Ewing, Inc., gave its collection of negatives to the Library in 1955. The Library retained about 50,000 news photographs and 20,000 studio portraits of notable people. Approximately 28,000 negatives have been processed and are available online. (About 42,000 negatives still need to be indexed.)