...WR Graves' Life of WR Hamilton (New York, 1882-1889), Vol. 3, p. 475. 944. The manner of Demoivre's death has a certain interest for psychologists. Shortly...twenty-four hours, and then died in his sleep.— BALL, WWR History of Mathematics (London, 1911), p. 894946. De Morgan was explaining to an actuary...

...(Cambridge: Cambridge University Press) Walter William Rouse Ball 1850-1925 29 The manner of Demoivre's death has a certain interest for psychologists. Shortly...minutes or a quarter of an hour longer each day than the preceeding one: the day after he had thus reached a total of something over twentythree hours he slept...

...his old age, twenty hours' sleep a day became habitual with De Moivre.) "Shortly before [his death] he declared that it was necessary for him to sleep...each day than the preceding one. The day after he had reached a total of over twentythree hours he slept up to the limit of twenty-four hours and then died...

...English mathematician WW Rouse Ball (1850-1925) describes his last days: . . . Shortly before [his death] he declared that it was necessary for him to sleep...after he had thus reached a total of something over twenty three hours he slept up to the limit of twenty-four hours, and then died in his sleep. The Swiss...

...interesting circumstance is related regarding his death which occurred in 1754. Shortly before, he had declared that it was necessary for him to sleep some...limit of twenty-four hours and then died in his sleep. A rival of De Moivre though of a somewhat later date was Thomas Simpson who was born in Leicestershire...