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Volume 79, Number 3-4 (1972)

Issue cover date: December 1972

Front Matter

General Interest Articles

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Philosophy of Environmental Regulation p. 131-134
Richard H. Stanley

Research

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Automatic Recording of Conductance Titrations p. 97-98
George E. Knudson and David Langhus

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The Absorption of Chlorinated Hydrocarbon Insecticides by Frog Skin p. 101-104
Timothy O. Kaiser and Jewett Dunham

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Spill Protection at Procter and Gamble's Iowa City Plant p. 138-140
H. E. Brown, W. S. Cameron, and R. G. Bennett

Back Matter