Perseid Reports. Callus, R. ; Pace, M. F. ; Hornby, P. W. ; Foulkes, M. ; Dziubinski, B. ; Allen, D. A. ; Pickup, D. J. ; Butler, R. J. ; MacKenzie, R. A. Abstract Publication: The Astronomer Pub Date: September 1970 Bibcode: 1970Astr....7...87C