2 FEBRUARY 1940, Page 17

Many Mice

Those ingenious Oxford biologists who make special study of the ups and downs of animal life should note that mice are almost multitudinous this year in a great many places— in Norfolk and Hertfordshire for example. Doubtless one reason for this seeming increase is the bad weather that has driven them into the neighbourhood of houses ; but there is some reason to believe that the actual number is altogether beyond the normal. The species in question is the long- tailed field mouse. They have crowded into some stack- yards and anyone who has been present when a cornstack is threshed out will know what a horde of guests the farmer has been entertaining. The country will save a deal of valuable food if in the next harvest all grain is threshed out at the earliest moment ; and as things are, or have been, it is often extremely difficult for anyone with only a small quantity of grain to secure the services of a thresher. Let Mr. Morrison and Sir Reginald Dorman Smith take heed of the mice as well as of the sparrows and rabbits.