Show Lights on Street D Delay lay Falling of Autumn Leaves New York York York-If If you ou have a street light and a shade tree dose close lose together in front of your house watch the leaves on the branches nearest the lamp when the tree begins to lose its foliage this fall The chances arc are that the branches getting the most light wit will keep their leaves longest Observations on the behavior of night lighted street trees h h have a v e been made mado here by Dr Edwin B. B Matzke of 01 Columbia university lie reports report I the retention of leaves by the most strongly illuminated branches considerably past t the be date of leaf fill leat fall from the rest of the tree How lIow Affects Leaves His lUa studies were made on Caro Cam Carolina Carolina lina poplar two species of sycamore sycamore ca more and the crack erack willow all aU trees able to survive the somewhat unfavorable conditions of New York city streets street The poplar eventually lost all aU of Its It leaves leave In the tho normal way wal but butthi the thi leaves of the two sycamore species clung fast to the tree until they ther were frozen to death |