Abstract
The results are given of the preliminary screening of many organic compounds and pesticides and of a few inorganic compounds on the eggs of T. hydatigena and T. ovis.Over fifty of these chemicals had little, if any, effect on activity or on hatching, the majority of the others had only an insignificant effect. Moreover, many of the most effective were hindered by the protection of proglottids. Furthermore, some could not be used in practice.