51.   The leaves are turning red and brown.

52.   The Sox uniform gets heavier when the leaves turn brown.

53.   This is a tank-town without a pennant race to suck us in until the leaves turn orange.

54.   This fall, as aspen leaves turn to gold across the Rockies, these tangled emotions are etched in especially high relief.

55.   This is the time of year in Cortland, N.Y., when leaves turn red and gold and signs sprout on front lawns with the names of favored candidates.

56.   To add to the confusion, biologists are continuing to learn more about these simple fall pleasures, including new insights into why leaves turn red.

57.   To conserve moisture, many trees shed their foliage early, or the leaves simply turned brown and clung despondently until a stiff wind stripped them away.

58.   Under our feet worms aerate the soil, and fallen leaves turn into nourishing compost.

59.   Unlike magnolias, however, it often blooms into fall when the leaves turn a blazing scarlet.

60.   When the leaves turn, upcountry New England has its busiest season of the year.