6.40 Pure Organic Compounds. 7.5 Force and Violence 7.30 Fossils of Dinosaurs.

Story: What Sadie Sang
Written and illustrated by EVE RICE Presenters
Carol Leader, Chris Tranchell

International Tennis
The BMW Championships from Devonshire Park, Eastbourne. Martina Navratilova, former Wimbledon Champion and winner of this tournament in 1978, heads this year's entry. The Czech, Hana Mandlikova, who defeated Martina in the semi-finals at Wimbledon last year, will be the main opposition along with American teenager, Andrea Jaeger.

Royal Ascot
BBC outside broadcast cameras bring you four races on Ladies' Day-when the fashions vie for attention with Gold Cup runners.
2.30 Cork and Orrery Stakes (Group 3. 6f)
3.5 Norfolk Stakes (Group 3. 5f)
3 45 The Gold Cup (Group1 2m 4f) The magnificent Ardross, unbeaten in Britain for 21 months, bids for his second Gold Cup with its prize of over £40,000.
4.20 King Edward VII Stakes (Group 2 1m 4f): 'The Ascot Derby'
Michael Stoute's colt, Electric, is among the fancied runners.
Introduced by Julian Wilson
Fashions described by Eve Pollard

The last of seven films
Introduced by Duncan Carse Lumberjack (1920)
After the autumn felling Canadian lumberjacks used to float the logs downstream on the spring thaw, clearing huge jams with skill, daring - and dynamite.
In a few places this old way still survives. So tonight we have a shared journey through time as past and present intermingle. Narrator MICHAEL MAGEE
Director MICHAEL BARNES
Executive producer RICHARD ROBINSON

with subtitles, followed by Weather

A series of programmes to mark the centenary of the composer's birth, introduced by John Drummond

The first part of tonight's programme allows us to relive that historic evening in 1965 when, for the first time live on British television, Stravinsky himself, then 83 years old, conducted the New Philharmonia Orchestra in a performance of The Firebird Suite (1945)
Directed by BRIAN URGE
In the second part, Maurice Bejart's ballet version is danced by the artists of the Ballet of the 20th Century.
Amsterdam Concertgebouw Orchestra, conducted by Bernard Haitink
Directed by RUDOLF KUFNER
Presented for BBC television by JULIA MATHIESON

Fear: What does fear do to our brains? Why do we get frightened for no good reason, and what can we do about it?

For the last time in the series, a duel of words and wit between
Jane Lapotaire , Robert Burchfield and Arthur Marshall
Ruth MadocMelvyn Bragg
Referee Robert Robinson
Devised by mark GOODSON and BILL todman Directed by JOHN BISHOP producer PAUL CIANI
(postponed from 3 june)

A series of film reports revealing and investigating matters of public concern and examining the deci
' sions issues and attitudes that 1 divide public opinion.
Reporters David Henshaw
Eric Robson and Tony Wilkinson t Editor COLIN adams. BBC Manchester rI

The BMW Championships from Devonshire Park, Eastbourne. Highlights of today's .quarter-finals of this tournament in which most of the leading players in the world are taking part. British hopes will be with SUE BARKER who last autumn had .such a memorable victory at Brighton.

Highlights of Ladies' Day at Ascot when the feature race was Europe s most valuable staying race, the Gold Cup.

Presented by PETE SNOW ' ,
JOHN TUSA and DONALD J\1ACCORMICK
JOAN BAKEWELL has first newS of stories from the arts; DAVID ICKE and MARSHALL LEE have 'the stories from behind the world of sport.

Ry Cooder in Concert
To end the present series of OGWT, a second chance to see last month's concert recorded at the BBC Television Centre, London.
'Little Sister' and 'Crazy About an Automobile' are among the songs featured.
Introduced by Anne Nightingale
Director TOM CORCORAN
Producer michael APPLETON