80 



CIVIC BIOLOGY 



forming not only one picture but a series of pictures to be 

 viewed from different directions, and that planting is most 

 effective which yields the most pleasing vistas. Then the 



FIG. 37. Lancaster elm 

 Results of neglect and vandalism (the cavity had been burned out) 



pictures will come and go, from the red maples, pussy willows, 

 peach and apple blossoms of spring, through the procession of 

 summer bloom, the fruits and foliage of autumn, to the crystal 

 fairy lands of ice storms and snow scenes of winter. Then, too, 



