Growth of the human at the time of adolescence
Tanner, J.M.
Lectures on the Scientific Basis of Medicine 1: 308-363
1953
PMID: 13184740 Document Number: 9055
It is scarcely possible, in the space of a single hour, to convey very much information about a subject which is hardly dealt with at all in the medical textbooks, and which I must accordingly describe from the beginning. A good deal is known about the growth of boys and girls during their last years before maturity, and the knowledge was not come by easily. After the initial rough description of events through surveys of children of different ages—work which was for the most part satisfactorily completed before the end of the last century—further advances depended on following individual children throughout the whole course of their growth—the so-called longitudinal technique. Such a programme, demanded in particular by Franz Boas (1892), called for much perseverance in both scientific and administrative spheres, and for the ability to wait many years for results, with the knowledge that, if it eventually turned out that the wrong methods had been used, there was scarcely time for a second attempt.
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