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• A columnist writing about an exhibition being staged by the Wellcome Trust called Dirt: the Filthy Reality of Everyday Life, incorrectly referred to an antisemitic poster in the exhibition being shown in "pre-war Poland". In fact the poster was printed and circulated by the Nazis in German-occupied Poland in 1941 (Dirt is everywhere – in sex, in class, in art and, yes readers, in my home, 2 April, page 35).
• A report on the initiative in northern France to grow vines on coal-mining waste tips referred to these sites as "slag heaps" throughout. To clarify: in English, slag is the mostly contaminated waste product of the iron- and steel-making process that would be inimical to agriculture. Coal mining waste or spoil tips are, on the other hand, composed of fairly benign carboniferous sedimentary rocks that could be suitable for viticulture. In addition, 2013 is the expected production date for the first bottles from this project, not 2012 as we had it (Make mine a chardonnay: vines to grow on slag heap, 6 April, page 16).
• An unlicensed use of the word licence resulted in a flawed headline above a column on the Comment pages yesterday (Ignoring its imperial history licences the west to repeat it, 7 April, page 35).
• The Quick crossword no 12,762 clue 6 down read "Scottish explorer and new town (11)". The solution, Livingstone, is correct for the explorer but unfortunately the new town is Livingston. The clue should have been "Scottish explorer and missionary" (6 April, page 28, G2).