Resource publications. 35-38. Investigations in fish control: 18, Toxicity of 22 therapeutic compounds to 6 tishes [with list of references], by Wayne A. Willford: 19, Toxicity of Bayer 73 to fish [with list of references], by Leilf L. Marking and James W. Hogan; 20, Toxicity of dimethyl sulfoxide (DMSO) to fish [with list of references], by Wayne A. Willford; 21, Labor-saving devices for bioassy laboratories [with one reference], by Robert J. Hesselberg and Ralph M. Burress.

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