Combined Radar, Photographic and Visual Observations of the Perseid Meteor Shower of 1947

DURING the past two years, considerable attention has been given to the radar reflexion from the ionization produced by meteors in our upper atmosphere. Significant results using frequencies of 2.7–212 mc./s. have been published by a number of investigators in both Britain and the United States 1 . In these papers there has been a general lack of any large quantity of correlated visual data giving the accurate times and positions of the meteors in the sky.