6.40 The Venetian Twins

7.30 Cloister to Cloister?: 1

i For details see BBCl at 3.55 pm)

4.55 Maths: Complex Integration

5.20 In the Deck

5.45 J. S. Bach

6.10 Reading Development

6.35 Mugging

with sub-titles for the hard-of-hearing, followed by Weather on 2

For the next ten weeks professional engineers talk about their work and its relevance. Tonight we hear from JONATHAN MINNS , of the Brighton Engineerium; PETER FRAENKEL of the Intermediate Technology Development Group, and MIKE COOLEY , a radical-minded AUEW man.
Film editor PETER RINGSTED Producer MICHAEL CARROD

The news, the people, the issues in Britain and around the world presented by Michael Charlton and Richard Kershaw with David Sells
Newsreader Kenneth Kendall
Assistant editors
PETER IBBOTSON and GEORGE WALKER Editor DAVID WITHEROW

from Clacks Farm with Peter Seabrook and Arthur Billitt Last autumn Arthur planted a trial area of British-grown tulips and daffodils. He and Peter assess the results, sow vegetables in the open ground and reveal their master plan for waging war on pests and diseases in soft fruit.
Produced by BARRIE EDGAR BBC Birmingham
Book, Down the Garden Path, £3.50, from bookshops

A reconstruction of life on an Ancient Britain farm.
The villagers celebrate the Celtic festival of Samhain, better known today as Bonfire Night. They burn a wicker man and enact a play with the spirits of darkness.
Film cameraman DAVID SAUNDERS Sound recordist Tom BROWN Film editor TOM POORE
Produced bv JOHN PERCIVAL BBC Bristol

Creators of modern philosophy
A series of 15 programmes in which Bryan Magee talks to 15 leading philosophers about Western philosophy today.
14: Philosophy and Literature with Iris Murdoch , former Fellow of Philosophy, St Anne's College, Oxford.
IRIS MURDOCH, a novelist of international reputation, was for 15 ! years a tutor in philosophy at Oxford University. In this programme she discusses the difference between writing novels and writing philosophy, and looks in general at, the relationship between philosophy and literature.
Series prepared by BRYAN MAGER Director TONY TYLEY
Executive producer JANET HOENIG
(A shortened version of this discussion will be in THE LISTENER dated 27 April) See Letters page

Weather

The Embassy
World Professional
Snooker Championship
DAVID VINE introduces highlights from the fourth day's play from the Crucible Theatre, Sheffield.
JOHN SPENCER , the current champion and favourite again this year, completes his first-round match, as does the No 8 seed, GRAHAM MILES . Commentator TED LOWE

JOHN RYE reads Tea in a Space Ship by JAMES KIRKUP