5 Editorial

6 Personal opinion: Veterinary science benefits people too!

11 Letters

16 Editorial: Science notes

17 Science notes

Favourite Science notes

18 The 39 steps, Ian Kinchin
20 Modelling the human digestive system, Richard Needham
21 Gourds galore!, Heather Hall
22 Alien alleles revisited, Helen Bell
27 Teaching the reactivity series of metals, Linda Needham
30 Circuit faults and researching Faraday, Iain MacInnes
37 Instant graphs starting with a diode, Geoff Auty

New science notes

40 Can Galton's 'law of unreason' be made reasonable?, Sarah Ashelford
43 Digestion in the mouth - an overlooked enzyme, Ian Graham and Chris Talbot
44 Phosphorus(V ) hydride - why does it not exist?, Chris Talbot
45 Virtual reality modelling language (VRML) in chemistry, Chris Talbot
47 A model for explaining stationary waves revisited, J. C. E. Potter
50 Teaching lateral inversion in a plane mirror, Richard J. J. Orton
51 Measuring the relative strengths of magnets using a 'hovering' paper-clip,
Philip Hugh Thomas
53 More from The Resourceful Physics Teacher, Keith Gibbs
56 Displacement - a load of (foot)balls?, Nick Minnican and Roger Lock
58 A cross-curricular theme day on spirals, Christine Cleave
61 ICT in science lessons: scientists are all shapes and sizes, Dawn Borthwick,
Paul Collings, Roger Lock and Karen Swain

65 Crumbling foundations: the erosion of the taxonomic base of biology
Christopher H. C. Lyal

75 Recording marine life: the role of MarLIN, the Marine Life Information Network
G. J. Baker

81 Discussing animal experimentation using Democs , a card activity to teach science and citizenship
Karen Smith

85 Regulation of animal experimentation in the United Kingdom
Martin Walsh and Jon Richmond

91 Why do we still use animals in medical research?
Ted Griffiths

97 A view from a research scientist
Dominic Wells

99 Animals in the safety testing of new therapies
Peter Greaves

105 Balancing the needs of animals and science
Jas Barley

111 Finding alternatives: an overview of the 3Rs and the use of animals in research
Vicky Robinson

115 Replacement of animal experiments is the ultimate aim
Carol Newman

121 Outstanding women chemists
Yin Kiong Hoh and Hong Kwen Boo

128 Book reviews

138 ICT reviews

142 Science websearch

144 Notes for contributors

144 Special issues list

144 Index to advertisers