Show EFFECT of EARTHS ROTATION belgian geologist so ascribes curious twists in tree trunks curious twists are aie obier observed veil in many tree trunks and the inquiry just be gan in europe the Hur surprising ton conclusion chislon that they are produced iced by the earths rotation like the twists of storms and the whirls seen in water van den broeck the belgian geologist points out that if conditions of growth were the cause the torsion should fol low the suns apparent path in a at least out 1000 trees the reverse Is true and it may be that the twist Is usually to the left in the northern hemisphere and to tho the right or with the clock chock in the southern souther n hemisphere like the turn of the cyclonic storms and water vortices this difference la Is due to the earths rotation jean bruches notes that it was ehorn some years ago that the winds due to the earths motion blow steadily at a season when vegetation Is active and sensitive and a slight continuous continuo ua bending and turning then would be likely to affect the tree permanently from the bulletin of the american Ante rican forestry Asso cution |