Re recruiting Local Section Secretaries for the BAAS meetingat Manchester 1962, Jennison was volunteered. Small number of letters. Re talks in the 'Science Surveys' and 'Prospects of Science'series. Copy of J.G. Davies paper 'Radio observation of meteors', includes original photographs. Correspondence re amplifiers, with photographs.
Correspondence re optical filters and mirrors.
Copies of papers about the Benelux radio telescopes sent by Seeger to hanbury Brown. Large file of URSI papers.