“…Experimental evidence accumulated during past decades has established beyond doubt that the hypothalamus is specifically concerned in the pathogenesis of both abnormal weight gain and weight loss (Aschner, 1912;Camus andRoussy, 1913, 1920;Bailey and Bremer, 1921 ;Smith, 1927;Keller et al, 1936;Hetherington andRanson, 1939, 1940;Hetherington, 1940;Brobeck et al, 1943;Heinbecker et al, 1944). One of us (Zondek, 1925(Zondek, , 1926b reported cases of obesity of presumably hypothalamic origin, some of which were associated with a marked tendendy towards water and salt retention (water-salt obesity), which also was a dominant feature in the present case.…”