
This crossection illustrates the compactness of the tree rings on this
one inch wide tree which grew from bare rock in the shade.
Both false rings and missing rings can be seen. The pencil point
lead in the top of the photo is about a milimeter wide.
Each pencil mark on the line drawn is about five years of
growth. Visually, false rings and annual rings are more readily
identifiable than on this limited resolution photo.