An Outside Broadcast from the Annual Meeting at Cambridge.

What governs the size of a raindrop? How can a hailstone grow as big as tennis ball?
Professor B.J. Mason, F.R.S. of Imperial College, London gives his presidential address to the Mathematics and Physics Section.
From the Lady Mitchell Hall, Cambridge

See page 42

A programme for children at home.
In the story chair, Brian Wildsmith

(to 11.25)

A filmed series in which Arnold Palmer and Gary Player are challenged in eighteen-hole match-play by pairs drawn from the elite of America's professional tournament circuit.
This week: Arnold Palmer and Gary Player v. Sam Snead and Doug Sanders played at the Torrey Pines Country Club, California.

by Marielaine Douglas and Anthony Church
[Starring] Barry Foster
with Jeremy Kemp, David Bauer, Jerry Stovin
(First shown on BBC-1)
See page 47

for tired music lovers
featuring Ivor Cutler of Y'hup, O.M.P.
and Ann Beach
with Celia van Mullem, Owen Wynne, Terence Rogan, Eric Harrison, Clifford Bevan, Francis Baines, The London Waits Players
Fritz Spiegl, Musical adviser and conductor
A music depreciation programme.
Including tonight: The Spiral Staircase Story, Harpsichord Concerto, Leopold Mozart's Symphony for Rifles and Hunting Dogs in the original scoring
(Repeat)

followed by The Weather

Ideas, Personalities, Progress
A report from Cambridge on the day's proceedings at the Annual Meeting of the British Association for the Advancement of Science.
Introduced by David Wilson.

Round off the day with Denis Tuohy, Michael Dean, Nicholas Tresilian, Joan Bakewell and tonight's guests.