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May 10, 1902


JAMA. 1902;XXXVIII(19):1236-1237. doi:10.1001/jama.1902.02480190042010

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The relation of the size of the head to size of brain and correspondingly to the grade of intellect is generally accepted as a fact bv the public and to a large extent by scientific men. It has its basis in the well-known facts of microcephaly, but within the reasonable limits of head size as carried by average rational individuals there have been no absolutely certain data for the solution of the question. Some great men have had small heads and vice versa. Professor Karl Pearson, the English mathematical biologist, has attacked the question in a communication to the Royal Society (abstracted in Nature, April 10) in his own special way, utilizing the records and measurements of the honor men at the Cambridge University examinations as compared with the average, and also the figures from schools. He considers in these cases the ability as shown in various ways, the judgment

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