1. and in Methods of Soil Analysis, Ed., American Society of Agronomy, Madison, Wise., 1965, p. 1346.
2. New Books
3. and this issue, p. 295.
4. An Ocean of Oil: A Small Oil Spill
5. and ?Physical, chemical and microbiological changes occurring during degradation of oil in aquatic and brackish water environments,? (A.S.M.E. Annual Winter Meeting, Nov. 16-20, Los Angeles, 1969); A.S.M.E. Publication, United Engineering Center, New York.