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JAMA. 1891;XVI(15):530-531. doi:10.1001/jama.1891.02410670026010.
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Sir James Crichton Brown on "Brain Rest"— B Naphthol and Salicylate of Bismuth as a Disinfectant in the Internal Treatment of Typhoid Fever—Results of Treatment with Dr. Koch's "Tuberculin" —The Consumption of Ether by the Irish—Miscellaneous Gleanings.

Sir James Crichton Brown, in his course of lectures recently delivered upon the subject of "Brain Rest," said that ordinary sleep grows deeper for the first hour and a half and then steadily diminishes until the slumberer awakens. Dr. Brown pleaded for eight hours for actively working brains, though ascetic notions have led many people to shorten the time, with the result that in certain cases it has been proved that the amount of sleep may be considerably reduced without injury. Literary men were apt to starve the brain in the matter of sleep, but some, nevertheless, had got on pretty well in spite of insomnia. Carlyle and Rossetti


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