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The author of this volume on the glands of internal secretion has good acquaintance with the scientific facts, and, in most instances, presents them fairly and critically. Less critical discrimination is shown in the fields in which in earlier years he had personal contact with experimental work. The chapters on the thyroids, the suprarenals and the sex glands seem best. That on the pineal body is out of proportion in length to what is known concerning the rôle of this body in health and disease. Moreover, the author promotes the use of pineal extract, given by mouth to "backward" children for a long time to improve their mentality. The author seems unacquainted with the numerous reliable researches that show no direct influence of sympathetic nerves on the tonus of skeletal muscles (pp. 30, 31, 143). He states that thyroidectomy in rabbits is without effect (p. 42). This is contrary to
The Principles and Practice of Endocrine Medicine. JAMA. 1926;86(13):973. doi:10.1001/jama.1926.02670390053036
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