[195] J.W. Ballantyne, _Manual of Antenatal Pathology: The Embryo_, p. 45. [196] W.C. Dabney, "Maternal Impressions," Keating's _Cyclopædia of Diseases of Children_, vol. i, 1889, pp. 191-216. [197] Féré, _Sensation et Mouvement_, Chapter XIV, "Sur la Psychologie du Foetus." [198] J. Thomson, "Defective Co-ordination in Utero," _British Medical Journal_, September 6, 1902. [199] H. Campbell, _Nervous Organization of Man and Woman_, p. 206; cf. Moll, _Untersuchungen über die Libido Sexualis_, bd. i, p. 264. Many authorities, from Soranus of Ephesus onward, consider, however, that sexual relations should cease during pregnancy, and certainly during the later months. Cf. Brénot, _De l'influence de la copulation pendant la grosseisse_, 1903. [200] Bianchi terms this fairly common condition the neurasthenia of pregnancy. [201] Vinay, _Traité des Maladies de la Grossesse_, 1894, pp. 51, 577; Mongeri, "Nervenkrankungen und Schwangerschaft." _Allegemeine Zeitschrift für Psychiatrie_, bd. LVIII, Heft 5. Haig remarks (_Uric Acid_, sixth edition, p. 151) that during normal pregnancy diseases with excess of uric acid in the blood (headaches, fits, mental depression, dyspepsia, asthma) are absent, and considers that the common idea that women do not easily take colds, fevers, etc., at this time is well founded. [202] Founding his remarks on certain anatomical changes and on a suggestion of Engel's, Donaldson observes: "It is impossible to escape the conclusion that in women natural education is complete only with maternity, which we know to effect some slight changes in the sympathetic system and possibly the spinal cord, and which may be fairly laid under suspicion of causing more structural modifications than are at present recognized." H.H. Donaldson, _The Growth of the Brain_, p. 352. [203] The state of menstruation is in many respects an approximation to that of pregnancy; see, e.g., Edgar's _Practice of Obstetrics_, plates 6 6 and 7, showing the resemblance of the menstrual changes in the breasts and the external sexual parts to the changes of pregnancy; cf. Havelock Ellis, _Man and Woman_, fourth edition, Chapter XI, "The Functional Periodicity of Woman." [204] Thus the gypsies say of an unmarried woman who becomes pregnant, "She has smelt the moon-flower"--a flower believed to grow on the so-called moon-mountain and to possess the property of impregnating by its smell. Ploss and Bartels, _Das Weib_, bd. I, Chapter XXVII. [205] This was a sound instinct, for it is now recognized as an extremely important part of puericulture that a woman should rest at all events during the latter part of pregnancy; see, e.g., Pinard, _Gazette des Hôpitaux_, November 28, 1895, and _Annales de Gynécologie_, August, 1898. [206] Ploss and Bartels, op. cit., Chapter XXIX; Kryptadia, vol. viii, p. 143. [207] Griffith Wilkin, _British Medical Journal_, April 8, 1905.