Gloria writes:

Are oak galls harmful to the tree?

It's likely the number of them that could become a problem. They do have a
use though. If you know someone that likes to make classical ink, they are one
of the most common ingredients, along with walnut husk.

David Giunti email: unity
What is the question? Gertrude Stein's last words
No one mouth is big enough to utter the whole thing. Alan Watts

On Display in the UK http://www.web-gallery.co.uk