FEEDBACK

摘要

Dozens of readers responded to our plea for help finding out what a "pyridaben carbazole sound" might be (26 June). We had been disappointed to find that the all-knowing internet did not help, and had suggested readers might like to send us their suggestions the old-fashioned way. One in fact sent a postcard, of the Louvre, Paris, suggesting it could be a substitute for an expletive - or a "click".