The advantages for an infant of being suckled by its mother are greater than can be accounted for by the mere fact of being suckled rather than hand-fed. This has been shown by Vitrey (_De la Mortalité Infantile_, Thèse de Lyon, 1907), who found from the statistics of the Hôtel-Dieu at Lyons, that infants suckled by their mothers have a mortality of only 12 per cent., but if suckled by strangers, the mortality rises to 33 per cent. It may be added that, while suckling is essential to the complete well-being of the child, it is highly desirable for the sake of the mother's health also. (Some important statistics are summarized in a paper on "Infantile Mortality" in _British Medical Journal_, Nov. 2, 1907), while the various aspects of suckling have been thoroughly discussed by Bollinger, "Ueber Säuglings-Sterblichkeit und die Erbliche functionelle Atrophie der menschlichen Milchdrüse" (_Correspondenzblatt Deutschen Gesellschaft Anthropologie_, Oct., 1899). It appears that in Sweden, in the middle of the eighteenth century, it was a punishable offense for a woman to give her baby the bottle when she was able to suckle it. In recent years Prof. Anton von Menger, of Vienna, has argued (in his _Burgerliche Recht und die Besitzlosen Klassen_) that the future generation has the right to make this claim, and he proposes that every mother shall be legally bound to suckle her child unless her inability to do so has been certified by a physician. E.A. Schroeder (_Das Recht in der Geschlechtlichen Ordnung_, 1893, p. 346) also argued that a mother should be legally bound to suckle her infant for at least nine months, unless solid grounds could be shown to the contrary, and this demand, which seems reasonable and natural, since it is a mother's privilege as well as her duty to suckle her infant when able to do so, has been insistently made by others also. It has been supported from the legal side by Weinberg (_Mutterschutz_, Sept., 1907). In France the Loi Roussel forbids a woman to act as a wet-nurse until her child is seven months old, and this has had an excellent effect in lowering infantile mortality (A. Allée, _Puériculture et la Loi Roussel_, Thèse de Paris, 1908). In some parts of Germany manufacturers are compelled to set up a suckling-room in the factory, where mothers can give the breast to the child in the intervals of work. The control and upkeep of these rooms, with provision of doctors and nurses, is undertaken by the municipality (_Sexual-Probleme_, Sept., 1908, p. 573).