Trends & Tangents.

The article presents business news briefs as of September 1, 1970. The author focuses on the book "The Wall Street Jungle" by Richard Ney. Topics include the competition between the U.S. and Japanese automakers on the small cars market in the U.S., a method by which petroleum explorer Union Oil Co. generates energy without water and air pollution, and data on the sales of art auction company Parke-Benet Galleries for its financial year that ended on July 31, 1970.