20 JULY 1944, Page 18

Use for Deep Shell Holes It's an ill wind —.

A use for one deep shell hole was fo soon after the bomb fell by a number of sand martins. The san cliff exactly suited them ; and a dozen nesting holes were put promp into use. The crater, which is thirty feet deep and forty across, in the garden of a Suffolk Priory, and the sandy soil allowed bomb to sink so deeply before exploding that little damage was do In a number of smaller filled in craters that I have noticed the vege tion has undergone a surprising change, and not for the better. one such circle after another a plentiful crop of gout weed or grou elder flourishes. I imagine the seed must be one of the long-li seeds that can lie doggo indefinitely. On this subject, the stan example, recently recalled, is the appearance of a rare Dock at Welsh Harp, Hendon. • Botanists hold that the seed must ha sprouted after a hundred years' sleep. No seeds, perhaps, are long lived than those of some water plants. In spite of their in habitat their seeds must have hot sun for germination. I remem well one very hot, dry summer finding the bare bed of a Mid brook thick with the water plantain, a plant that I had never s there before.