LABORATORY NOTE: A STUDY IN LABORATORY AUTOMATION Analysis of PCBs in trans former oils 8y $.1.

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676 OCCUPATIONAL TUMORS AND ALLIED DISEASES months, did not result in any local irritation or changes of the jaw nor in an irritation of the gastro-intestinal tract.

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186 Annals New York Academy of Sciences It is an axiom of sound public health practice that protective and pre ventive control measures, to be rational and effective against environmental health hazards, must be based on adequate information on the sources and types of exposure of the causative agent involved and on the population groups affected.

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(d) Liberty Lane, Hampton, New Hampshire 03942; (e) Abex objects to this subpart on the grounds that it is overly broad, burdensome, lacks relevance to this case and is not reasonably calculated to lead to the discovery of admissible evidence.

dward Howard cjCo.

Edward Howard 6Co.