3/6 Inventor Ralph Exon's colleague Max Flinders speculates on the plant strain's potency.
3/13 Syme's history is revealed, from his joining Scotland Yard to his election as Thursday.
7/8 Lord Peter Wimsey goes snooping to try and establish who killed Geoffrey Deacon, and how.
3/5 There are suspects-a-plenty, witchcraft and a love-letter for the sleuth to investigate.
3/10 Pregnant Jane receives a letter from her father, and visits a jazz club with Toby.
1/3 When Megan keeps playing a mystery melody in rehearsals, she turns musical detective.
2/4 Despite the dark tales he's heard about her, Myshkin heads to Nastasya's birthday party.
7/8 Faith is worrying about money, when Bill gets an unexpected offer. From December 1989.
1/6 When secretive Charlotte goes into hospital, sisters Anna and Victoria fear the worst.
4/5 Time-hopping has brought nothing but trouble. Could a dodgy robot make things better?
6/7 It's Christmas Eve and the dogs escape Hell Hall to begin the long journey back to London.
1/5 It's getting on for noon and the mischievous schoolboy still hasn't caught anyone out.
Join all your CBeebies friends for songs, rhymes and stories on BBC Radio 7.
With the revelation that Neddie was once mass produced, can the original be found?
4/6 Still hunting the killer, hack George Cragge denies he's retiring. From December 1999.
3/3 By Michael Chaplin. A centenarian Glaswegian remembers life during the Blitz.
3/8 Extradition agreements are on the agenda, and some accusations can't be brushed aside.
3/4 Prince Myshkin analyses his feelings for the spoilt Nastasya and the more timid Aglaya.
4/10 Jane has spent the night with Toby, but she hasn't told him about her pregnancy.
2/3 Musical detective Megan's mystery melody quest leads her to a 1920s Swansea tearoom.
1/14 The explosive Flying Wombat - and insulted Italians. From October 1966.
8/8 Will upper-class sleuth Lord Peter Wimsey finally solve the mystery of Deacon's murder?
4/5 Hercule Poirot makes a chance discovery in a nearby cove. Stars John Moffat.
4/4 Francine Stock examines the relationship between cinema and voyeurism.
2/6 When scarlet fever breaks out, the GP turns private detective. With John Gordon Sinclair.
4/5 The Mayor of London talks about his admiration for the Greek historian Thucydides.
4/5 Life and writing get mixed up - a dangerous combination.
11/12 Jim Dixon makes his infamous speech and includes his impression of Evelyn Waugh.
4/5 Deep underground in a lab in Geneva, scientists try to discover more about the Big Bang.
Featuring Big George and the Seventh Knight, The Dream Travellers, and Katie Milk.
4/6 Having already sparked a plane crash, the deadly Exon plant strain's advance continues.
4/13 Gabriel Syme meets his fellow anarchists at a breakfast meeting in Leicester Square.
1/6 Miles and the Newsjack team make light of news stories... where appropriate.
6/6 Badgerland goes global and the History of the Future. From April 2004.
1/4 The London flatmates throw a party, with dates to impress - and a sandwich-maker to mend.
5/5 The children are convinced the man from the BBC will help them. But is he what he seems?
7/7 Returning to London, Cruella's cat gives the Dalmatians the chance to get revenge.
2/5 The schoolboy jumps on a coach - and takes an old lady for a ride with tales of neglect.
Friday 18 June 2010