It is porous, but the pores are small, except one or two rows in the springwood. |
It builds up the annual ring, first the springwood very rapidly, and then the summerwood more slowly. |
The genesis of Raspberry Plain, just north of springwood, has already been given. |
There are many pores, however, and those in the springwood are arranged in bands. |
The springwood is filled with large pores, the summerwood with smaller ones. |
Sometimes, and with certain species, the springwood is much broader than the other. |