6.25 Holography at Work
6.50 Money Grows on Trees?
7.15 Geology - Metamorphlc Rocks
7.40 Colour photography
8.5 5 Oxidative Phosphorylation
8.30 Equilibrium Rules, OK?
8.55The Real World
9 20 Maths: Catastrophe Theory
9.45 Man-made Futures
10,10 Polvmer Production
10.35 The Work of School Governors
11.0 Insect Hormones
11.25 Computing at British Airways
11.50 The Tay Estuary
12.15 Research Methods
12.40 Physiology: Fertilisation
1 5 Inorganic Chemistry - Bonding
1.30 Physics: Magnetism

Introduced by Frank Bough

2.0* Cricket: The John Player League
The 40-over version of the game has created enormous interest since it was first televised in 1969. This year the 17 counties taking part are competing for a £12,000 first prize.
Commentators JIM LAKER and CHRISTOPHER MARTIN-JENKINS

2.30* International Tennis: The French Open Championships from Stade Roland-Garros, Paris
The Men's Singles Final
Ivan Lendl of Czechoslovakia has dominated world tennis for the past six months, reeling off win after win on the Grand Prix circuit, but he's never won a Grand Slam title.
So this afternoon, with Bjorn Borg at odds with officialdom and out of action, the time seems ripe for the Czech to win his first classic championship. Commentators DAN MASKELL and GERALD WILLIAMS

3.25 Racing from Chantilly: Prix du Jockey Club
Can Lester Piggott win France's premier classic on the locally-trained favourite Persepolis? Or will Assert, owned by Robert Sangster, become the first Irish-trained winner? Commentator PETER O'SULLEVAN

4.10* International Powerboat Racing from Bristol
After a weekend of intense racing, the fastest 16 boats in the two major classes compete over 20 laps at speeds in excess of 100 mph. The Embassy Gold Cup is for boats with unlimited engine capacity, while the Duke of York's Trophy is for two-litre catamarans -a class in which Britain's TONY WILLIAMS is the current world champion.
Commentator MURRAY WALKER

*The above timings indicate only the first of several transmissions.
Television presentation:
Cricket BOB DUNCAN and JEFF Goddard
Powerboats DAVID KENNING
Tennis French TV SERVICE
Assistant editor Grandstand JOHN ROWLINSON
Producer Grandstand MARTIN HOPKINS
Editor Grandstand MIKE MURPHY

A digest of the news of the week and other world matters of interest seen by news cameras around the world; the interesting and the picturesque, the important and dramatic, plus a visual commentary for those who cannot hear. with Jan Leeming
Editor RICHARD GAMBLE

The first of two programmes reporting on an adventurous scheme for dealing with America's teenage offenders.
1: The Last Chance Wagon Train Narrated by Michael Dean
In Arizona, the heart of the American Wild West, 80 tough young delinquents were offered the choice of staying behind bars or joining a 1,500-mile trek by wagon train to Denver, Colorado. They are put through an experience as tough as they themselves pretend to be.
The film is a frank and often disturbing account of a unique experiment in dealing with young criminals, particularly relevant when the figures for teenage crime in this country appear to be on the increase.
Producer bob SAUNDERS Series editors
ANTHONY ISAACS and PETER JONES

with Jan Leeming ; Weather

Missing Hero
Raoul Wallenberg - a Swedish diplomat in Budapest in 1944 -saved tens of thousands of Jews from the Auschwitz gas chambers. The amazing exploits of this modern Pimpernel and the mystery of his disappearance are revealed by this investigative film. Documents recently released by the Swedish authorities show beyond doubt that he was alive long after his alleged death, and that he could still be alive somewhere in the Soviet Gulag-, forgotten ' for 38 years. John Bierman reports.
Producer ALAN PATIENT
Editor tim SLESSOR

Beyond the Dragon's Mouth Shiva Naipaul in Trinidad
' In some ways I would say that the island has changed more than I have done. On my sporadic visits I walk the hot streets of Port-of-Spain-not quite an outsider, but no longer a native ...' shiva naipaul returned, after 18 years, to his native Trinidad to make this film. His family came from India to provide indentured labour on the sugar-cane plantations of Caroni - the island's rural heartland. Today, like many families in Trinidad, they enjoy the benefits that are the product of an oil economy. But the prosperity is shallow, and Naipaul has grave doubts about the economic political, and cultural future of the island.
Film editor Michael JACKSON Producer ADAM LOW

A season of films featuring one of the screen's most powerful actors. with Lee Remick , George Segal
A strangler is on the loose in New York. The victims are always middle-aged women and the killer always attacks in a different outrageous disguise. Rod Steiger 's virtuoso performance as the murderer, who commits his crime in a variety of disguises, dominates this skilful black comedy, in which a bizarre camaraderie develops between the killer and the harassed detective trying to track him down.
Screenplay by JOHN GAY , based on the novel by WILLIAM GOLDMAN Produced by SOL C. SIEGEL Directed by JACK SMIGHT Films: page 16

featuring motor racing's Formula One World Championship
The US Grand Prix - Detroit
The latest race at Monaco was one of the most dramatic in Grand Prix history and has thrown the drivers' championship wide open. Only six points separate the top six drivers, led by Alain Prost , with Britain's John Watson in second place.
Today's race is the first ever through the streets of Detroit and the circuit, similar to Monaco - narrow and with 20 corners-winds its way through the sky-scrapers of a city famous for its manufacture of automobiles.
Television presentation ABC Producer JIM RESIDE
Editor HAROLD ANDERSON