91av

Richard Gregory’s Mirrors in Mind (W. H. Freeman, £20/ $26.95,
ISBN 0 7167 4511 9), reviewed by Roy Porter in Christmas Books (16 November, p
44), won’t be available until early January. Apologies to all those inspired by
the review to dash out and buy a copy, but we were only told of the publication
delay after the review had gone to press.