by RICHARD POPPLEWELL
From St. Paul's Cathedral. London

On Sound
Introduced by DOUGLAS BROWN The Prospects for Stereo
G. J. PHILLIPS , Ph.D., of the BBC's Research Department, on stereo systems. RICHARD MARRIOTT , Assistant Director of Sound Broadcasting, on the BBC's intentions.
The Voice and the Mike
H. BURRELL HADDEN , BBC instructor in studio operations on some BBC microphone practice.
Produced by R. E. KEEN
Broadcast on May 10

Quasi-stellar Objects by DENNIS SCIAMA , of the Department of Applied Mathematics, University of Cambridge
In the last year, astronomers have discovered a new kind of heavenly body-associations of millions of stars, emitting vast amounts of radio energy. It has been said that this discovery is the most important event in astronomy since Hubble announced that the universe is expanding. Dr. Sciama explains what all the fuss is about.

Children and Mothers in Hospital
The Platt Report on the Welfare of Children in Hospital (1959) favoured the admission of mothers with children under five. How are the hospitals getting on in putting this ideal into practice?
Speaker, JUNE JAY
At Arm's Length
Do teachers create a barrier between parents and schools?
Speaker, MICHAEL MARLAND
Head of the English Department in a comprehensive school

Amateurs v. Internationals
F. A. RHODEN and R. E. RUSHBROOK (White) consult against LEONARD BARDEN and JOHN LITTLEWOOD
Position after Black's (13) ... K-Bl r2qlklr/pp3plp/3blpbl/lBp5/ 3nP2Q/PlN5/lP3PPP/2KR2NR
My Gravest Error
7: ELAINE PRITCHARD
(board in starting position)
Arranged by TERENCE TILLER

Masada
2: The Zealots' Last Stand
Herod the Great's palace fortress lies on top of this remote natural stronghold on the western shore of the Dead Sea. Later, in A.D. 72, Masada was the scene of the rebelling Zealots' last stand against the Romans. Since November a large-scale excavation of Masada has been directed by Professor YIGAEL YADIN , who describes progress to date in a recording recently made on the site.
Introduced by JOHN IRVING