The contents of this monograph "Hypothalamic Control of Lacta tion" are the result of studies by a nine-man team which has worked together for nine years. The topic is so fascinating that new research students are attracted to it every year, and the circle is growing steadily. This is, in fact, part of a much more extensive research field to which our Department is applying itself at present, viz. "Hypo thalamic Pharmacology." Our work in this sphere was made possible by a generous grant from the United States Department of Agriculture, which helped us during the first 5 years of research...