This question has been raised actively recently and in regard to the principal producing country the hon. Member had in mind very active discussion and investigation are taking place. I should be quite sure that the Government of every producing country would desire to eliminate the trouble and that the producers as a whole would desire that. It is in their interests, as well as in the interests of the consumers, to see that every possible help is given to research associations which are trying—not entirely without success—to find a material which would meet the purpose of the producer in getting something which is reasonably indestructible and therefore serves to identify the animal, but also something which does not give trouble to the wool consumer later. The hon. Member will be aware of the production of the material known as lanolin basic emulsion in the research industry of this country, which is used to a considerable extent and which perhaps can be used more by producers in other countries.