Assistantt Professor of Population Studies, Harvard School of Public Health; former field director, India- Harvard Population Study.
Field studies on the fertility of human populations have the same objectives as clinical and laboratory studies. These are:
I was very glad to hear Dr. Hisaw mention the three legs of the tripod of knowledge that are needed in order to solve population problems. I shall be making use of the concept of ecology and I think perhaps this is what Dr. Hisaw had in mind when he mentioned the three aspects. Perhaps I should mention that human ecology means rather different things or has different shades of meaning to different people. My own preference is for the way biologists use it, as the relationship between the human species and the total environment, the physical, biological and social environment. Sociologists tend to use the term, as I understand it, more particularly in connection with the relationships between man and his spatial distribution on the face of the earth.
|1.||To describe the processes of fertility as a means of defining the determinants of fertility;|
|2.||To describe and differentiate normal from abnormal fertility; and|