I was pretty sure that Kalmus and this book had come up before and I could find it in the CSGnet archive, but all I find is this mention in a quotation.
Search results are returned vastly faster than the last time I looked for something. Something has been fixed or something is broken.
Hans Kalmus (1906-1988) was primarily a geneticist, but of wide interests. A decade and a half earlier, he wrote
Kalmus, H. (1950). A cybernetical aspect of genetics. J. Heredity, 41, 19.
I must have been thinking of Milhorn, Howard T. (1966) The Application of Control Theory to Physiological Systems. I have a copy that is, alas, among the many things I haven’t read.