Oops!

Here's a little snippet from the Guardian web site.

"A study to raise awareness of geography found that two thirds of people (65%) mistakenly believe Britain is made up of four countries, rather than the correct three: England, Scotland and Wales."

Here's another quote, giving slightly different information.

"Britain,UK: These terms are synonymous. Britain is the official short form of the United Kingdom of Great Britain and Northern Ireland... Great Britain, however,refers only to England, Wales and Scotland."

The source of the second quote?
Why The Guardian Book of English Language, a condensed version of the Guardian's own Style Manual. Oops!