(to 7.20)

9.38 Science Workshop: Twigs and Wood 'A'
Some trees live for 4,000 years, but you don't cut them down to count the rings.

10.0 You and Me
A series for 4- and 5-year-olds
Jeni Barnett helps Cosmo find a hat to fit Dibs. A visit to a ceili for some Irish dancing.
Book: Emma and the Measles by Gunilla Wolde and Almquist and Wilksell Forlag

10.15 Maths at Work: 1
Young people use CSE maths at work.

10.40 Mindstretchers: Problems A to B: The Problem

10.45 Pages from Ceefax

11.0 Words and Pictures: Funnybones

11.17 A-Level Studies: Statistics: 1: Sampling and Probability
What is the probability that a drunken driver will not fail a roadside test? Can it be estimated?

11.39 A-Level Studies: History: The Pilgrimage of Grace

12.5 pm Realidades de Espana: 1: Alcoy - Moors and Christians
Documentaries about aspects of present-day Spain, containing spoken Spanish.
Book, £2.50 from booksellers

12.30 Caring for Older People: Work and Retirement
Today women as much as men have to adjust to retirement after a career. Two nurses, one retired and one near retirement, discuss how their work experiences affect their lives.

12.55 Pages from Ceefax

1.38 One World: Trading the Sun
Tourism is one way of helping a poorer country to develop. But there are costs as well as benefits.

2.0 Watch: Going on Holiday: Crossing the Channel
Louise takes the cross-channel ferry to St Malo in France for her holiday. She explores from the car deck to the captain's bridge - and even gets to steer the ship! James has been left behind, but he checks his map to see where Louise is going and with the aid of a postcard makes a model of the ferry.

2.18 Subtitle Slot: Science Workshop - Fish 'A'
How fish swim and breathe
(A series of programmes from the year's school television output, repeated in subtitled form for hearing-impaired children.)

2.40 Zig Zag: Gardens and Growth: Seeds
(Ceefax subtitles)

with Floella Benjamin and Robin Stevens
Floella joins the children of Lee Bank Primary School in a dinosaur dance and explains how dinosaurs invented rock and roll before music was ever thought of! Fribble's monster does the monster conga with the children of Holman Hunt Primary School, and then
Fribble decides to have a go himself.
Musical director
Peter Gosling
Percussion Will Hill
Film editor GERRY BARWICK Videotape editor SAM SEAL Designer AUSTIN RUDDY Executive producer CYNTHIA FELGATE
Production CHRISTINE HEWITT

A cartoon series

Josephine Buchan presents the programme that gives you the opportunity to comment on BBCtv.
Under discussion this week: Friday People and Top of the Pops In the studio:
Mike Smith , presenter of Friday People
Prizes will be given for the best-written television criticism, and for younger viewers a prize for a drawing or painting of their favourite television personality.
All this together with your letters and requests to see again clips from your most popular programmes. Producer PHILIP CHILVERS

Dragon Boat Races
Travelling half-way around the world to be thrashed by the Far Easterns at their national sport seems an odd assignment for Peter Duncan. But after weeks of strenuous training with the men of the North East Amateur Rowing Club, they were ready for allcomers and off to exotic Hong Kong.
Film cameraman MARTIN PATMORE Film editor PAT O'GRADY Producer ROB BENFIELD

with subtitles, followed by Weather

Ragley Hall , Warwickshire Arthur Negus visits the beautiful 17th-century home of the Marquess and Marchioness of Hertford.
In the Red Saloon and Mauve Drawing Room, Arthur admires furniture designed by Chippendale and Robert Adam , while expert
David Battie tells the history behind the exquisite porcelain Director BRIAN HAWKINS Producer ROBIN DRAKE BBC Bristol

starring
George Montgomery Keith Larsen
Dan Barton of the Chandler Detective Agency is on the trail of the leader of a gang of outlaws. In order to track the man down,
Barton poses as an outlaw himself.
This unusual film is constructed as a 'documentary thriller' within the framework of a conventional Western.
Screenplay by DANIEL B. ULLMAN and DAVID CHANTLER
Produced by VINCENT M. FENNELLY Directed by PAUL LANDRES 0 FILMS: page 14

Ludmilla Tourischeva
While Olga Korbut was attracting both public and media attention at the Munich Olympic Games, it was her team mate
Tourischeva who won that most prized gold medal for the Individual Overall Competition.
Series producer JEFF GODDARD

Juliet Alexander and Vince Herbert present the magazine which provides a voice for all that's happening in Britain's black community. This week a report from
Manchester on Abasindi-one of the growing number of black women's groups; and a review of 20 years of reggae music, from BOB MARLEY to LINTON KWESI JOHNSON. Producer ROY CHAPMAN
Executive producer JOHN WILCOX

by CHARLES DICKENS dramatised in eight episodes by ARTHUR HOPCRAFT starring
Diana Rigg
Denholm Elliott
4: Richard's intended engagement to Ada has perturbed Jarndyce, who considers it hasty, and they argue. Jarndyce, Esther and Ada have visited Boythorn in Lincolnshire and met Lady Dedlock.
Music GEOFFREY BURGON Film editor DAVE KING Designer TIM HARVEY Executive producer JONATHAN POWELL
Producers JOHN HARRIS BETTY WILLINGALE
Directed by ROSS DEVENISH
*CEEFAX SUBTITLES

Belsen, May 1945
In the spring of 1945, at a couple of days' notice, 98 medical students were taken from the sheltered world of their teaching hospitals and flown to Belsen, to give what help they could to the thousands of starving and disease-ridden inmates.
In the weeks that followed, these volunteers witnessed scenes of nightmare and horror as they struggled to care for people who were physically beyond saving or had lost all will to live.
On the 40th anniversary of their visit, and after a lifetime in medicine, some of these men look back and reflect on the meaning of that experience.

This programme was suggested by Colonel E.E. Vella of the Royal Army Medical College If you want to make your own programme or suggest programme ideas, get in touch with Open Space, [postal address not given]

John Tusa , Peter Snow and Donald MacCormick with Jenni Murray and Ian Smith

11.30 Data Transmission Networks
How can computer signals be sent along ordinary telephone lines? A standard technique is to use a MODEM (modulator/demodulator), which can employ different varieties of phase modulation to achieve a range of transmission speeds.

11.55 Biology: What is Development?
Time-lapse photography of slime mould aggregation indicates that complex communication is occurring between cells. This gives some clues as to the nature of development.

(to 0.25)