For those of us who cannot get enough of the Georgians, Hester Lynch Salusbury, who became Mrs Thrale and later Mrs Piozzi, is indispensable. At a time when Samuel Johnson was the greatest planet in the emerging literary firmament, she was one of his most important satellites, in fact more than that: a prop and stay without whom he might well have foundered. When they came to characterize themselves however, they were less portentous: Johnson was an elephant to Mrs Thrale’s rattlesnake. With his trunk he could ‘lift up a buffalo or pick up a pin’, she said, while he claimed, ‘Many have felt your venom, few have escaped your attractions and all the world knows you have the rattle.’ This last is a reference to her delight in conversation and her skill at maintaining its flow, what Johnson called her ‘stream of sentiment enlightened by gaiety’.