I've got to ask, what were the ducks in for?
Stig, London, UK
Re Paris's skating policemen - surely any Parisian ne'er do well could end a pursuit very quickly by simply running up (or down) an escalator? Or across a large drain cover? Or, um, a cattle grid?
Could you please ask Fred from Rotherham (Friday's letters) what the masculine of a "nanniversary" is?
Charlie, London, UK
In an article about astronomy (Astronomers 'must make own case') Prof Keith Mason says that "Everything we do has a very high blue-skies content". Odd for a field I associate with the night.
Chris Clarke, Tunbridge Wells
Re: 10 things we didn't know last week, number 10. My two daughters (11 and 12 years old) are considerably more than 1cm taller than they were 10 years ago. I put this down to plenty of fruit and veg and exellent parenting.
Jimlad, Paris, France
"As the host country for the 2012 Olympics that is coming up, I will attend the Olympics as I hope many others do" - so Gordon Brown thinks he's a country now, does he?
Chris Duncalf, High Wycombe, Bucks
To Ross of Essex (Friday's letters). It is perfectly possible to be a consultant in general medicine and on the specialist register. Most physicians take two qualifications - one speciality plus general (internal) medicine. Many, many diagnoses fall between two camps and a sound knowledge of general medicine makes for a properly rounded physician.
GPs are true "generalists" - they do paediatrics, surgery, gynaecology, dermatology, medicine, infectious diseases etc etc. Although the world "general" seems to strike you as odd it is still a specific area of medicine.
John Cunningham is actually a nephrologist. I suspect the BBC has had to dumb down its description of his medical expertise, as some people will be unable to appreciate that kidney specialists tend to be experts in general medicine as well.