The Last Days of Smallpox - Mark Pallen ****

It's very rare that I find a medical popular science book unputdownable (in fact it's my least favourite sub-genre of popular science) - but it's an adjective I'd apply to Mark Pallen's The Last Days of Smallpox. This horrible disease was eradicated worldwide in 1977 - and a story of its background, including the last natural outbreaks in the UK, makes up the opening section of this book, but the main focus is an exploration of the last ever outbreak in the UK in Birmingham in 1978 - one year after the disease was eradicated.

Pallen takes us through in immaculate detail the escape of smallpox from a lab at Birmingham University, the sad cases of Janet Parker, a photographer who worked in the same building and died of smallpox, and Henry Bedson, the microbiologist in charge of the lab who committed suicide as a result of the stress of the outbreak. Pallen covers the possible ways that Parker could have become infected and gives a blow-by-blow account of the court case when the Health and Safety Executive took the University to court over the outbreak.

All of this could have been rather dull, despite the gruesome topic. However, Pallen has a gift for dramatisation and the account, often in the present tense, gives a sense of urgency and reality to the narrative, in a way that I've rarely seen in a science book. A few years ago I was taken on a tour of Porton Down to record a radio programme and remember the stomach churning frisson of looking through glass at people handling deadly diseases. I was taken straight back to that corridor and the feeling of tension I felt there by Pallen's excellent descriptive writing.

The book is self-published, but has been proof read and copy edited well. It only really shows in the print size, which is smaller than I would have liked. A publisher might have tightened up a few parts, notably the account of the court case, which perhaps went into a little too much detail, but if you like legal stories (which I do), it was no problem.

The combination of the account of the defeat of the deadly virus that inspired the process of vaccination with the particular and very human happenings at Birmingham in 1978 makes this book a real winner.

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Review by Brian Clegg

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The Hidden Half - Michael Blastland *****

Michael Blastland is co-author of one of my favourite titles on the use and misuse of numbers, The Tiger that Isn't - so I was excited to see this book and wasn't disappointed.

Blastland opens with the story of a parthenogenic crustacean that seems to demonstrate that, despite having near-identical nature and nurture, a collection of the animals vary hugely in size, length of life and practically every other measure. This is used to introduce us to the idea that our science deals effectively with the easy bit, the 'half' that is accessible, but that in many circumstances there is a hidden half that comprises a whole range of very small factors which collectively can have a huge impact, but which are pretty much impossible to predict or account for. (I put 'half' in inverted commas as it might be fairer to say 'part' - there's no suggestion that this is exactly 50:50.)

We go on to discover this hidden half turning up in all kinds of applications of …

Where are the chemistry popular science books?

by Brian Clegg
There has never been more emphasis on the importance of public engagement. We need both to encourage a deeper interest in science and to counter anti-scientific views that seem to go hand-in-hand with some types of politics. Getting the public interested in science both helps recruit new scientists of the future and spreads an understanding of why an area of scientific research deserves funding. Yet it is possible that chemistry lags behind the other sciences in outreach. As a science writer, and editor of this website, I believe that chemistry is under-represented in popular science. I'd like to establish if this is the case, if so why it is happening - and what can be done to change things.

An easy straw poll is provided by the topic tags on the site. At the time of writing, there are 22 books under 'chemistry' as opposed to 97 maths, 126 biology and 182 physics. The distribution is inevitably influenced by editorial bias - but as the editor, I can confirm …

Bloom - Ruth Kassinger ***

There is much fascinating material in this chunky book by Ruth Kassinger. It may be my total ignorance of biology and everyone else knows these things, but I learnt so much - for example that seaweed is algae and not a plant, about algae's role in the development of land plants, about the algae in lichen and its contribution to coral reefs.

The book is divided into four broad sections: on the origins and development of algae, on algae (and particularly seaweed) as food, on making use of algae, for example, for biofuel, and on algae and climate change, particularly the bleaching of coral and algal blooms. This is all done in a very approachable writing style, mixing descriptive material that is never over-technical with narrative often featuring visits to different locations and to talk to a range of experts from those who study to algae to those who cook them.

There are two problems though. Firstly, the book is too long at 380 pages. Each section could do with a trim, but this wa…

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