In ring-porous woods each season's growth is always well defined, because the large pores formed early in the season abut on the denser tissue of the year before.
In ring - porous woods each season 's growth is always well defined , because the large pores formed early in the season abut on the denser tissue of the year before .
When does the denser tissue the new pores abut come from?
When does the denser tissue the new pores abut come from ?
the year before
the year before