1. An approach to quantifying the exploitability of human ecosystems

   • W. B. Clapham Jr.

   OriginalPaper Pages: 1 - 30

2. Energy and the structure of social institutions

   • Lynton K. Caldwell

   OriginalPaper Pages: 31 - 45

3. Interpersonal relationships and personal space: Research review and theoretical model

   • Eric Sundstrom
   • Irwin Altman

   OriginalPaper Pages: 47 - 67

4. Skin color and climate in Central Africa: A comparison of three populations

   • Jean Hiernaux

   OriginalPaper Pages: 69 - 73

5. Book reviews

   • Werner H. Terjung
   • Norton Ginsburg
   • James K. Mitchell

   BookReview Pages: 75 - 88