"Don’t hesitate – send an owl today. And don’t forget to attach your details."
-- advertisement for the Mnemosyne Clinic appearing in the Daily Prophet (DP4)
Poor Memory? is an advertisement for a memory clinic appearing in the Daily Prophet (DP4).
“Poor memory? Forget where you left your wand? Wish you could remember spells without referring to cumbersome books?” The Mnemosyne Clinic for Memory Modification will help – as long as you remembered to send them your contact details via Owl Post…. (DP4).
The Clinic is promising to restore memory to its "natural range and vigour" - this assumes, of course, that the original memory capacity of the witch or wizard was any good in the first place.
Although the date printed on the fourth Daily Prophet Newsletter (DP4) is 1 October 1999, the timeframe for this event is 1992-1993.