Mnemosine store book
From Tardis Wiki, the free Doctor Who reference
A mnemosine store book was a book that memories could be stored in, but as soon as it was closed they were forgotten. Bernice Summerfield was given one by Charles Stafford so that Benny would go to Canatha. She stored the memories of that trip in the book. (PROSE: A la Recherche du Temps Perdu)
