Corrections

• We try hard to get things right. When we get something wrong, we say so and fix it in public.
• When we find or are told about a significant mistake, we correct the item promptly and add a dated note to it and to this log. We never edit a fact, figure, quote or conclusion silently.
• A correction that changes a finding, a figure or a conclusion is also shown under the headline of the item.
• Spelling, grammar, formatting and broken links are fixed without a note when they do not change the meaning.
• Each correction gets its own catalogue number from the same sequence as our items, so it can be cited and linked. A correction to a correction gets a new number and links to the earlier one.
• Where a mistake has caused harm, we apologise as well as correct.
• We do not delete published items unless the law requires it. If our Editor-in-Chief withdraws an item, its page and number stay, with a dated notice saying why, and the withdrawal is listed here. The notice does not repeat what was removed.
• We acknowledge every report within two working days.

Spotted an error? Tell us.