20 APRIL 1929, Page 14

IMMIGRANT EVILS.

Perhaps the very best of animal welfare societies in our country has been established within the University of London, for it is scientific and altogether free from any excesses of sentimentality. A discussion on the subject of trapping was interpolated under its influence in the programme of the National Union of Students concluded this week at Aberyst- wyth. I hope that they will make this Czecho-Slovakian law a plank in their platform. I am told that one of the only exceptions permitted in Czecho-Slovakia • concerns the trapping of a certain foreign rat recently imported and en- larged. I could not discover exactly what species of "large rat " was meant ; but it seems to have multiplied, like the imported grey squirrel and little owl here, and to have become so great a danger to the native fauna that trapping (under strict licence) had become advisable.

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