I ran across a rather interesting newsletter from the International Lilac Society titled “1983-Lilac-Newsletter-Vol.-IX-No.-4-April“. This newsletter has lots of information on numerous Lilacs species that you may not find anywhere else. There are also letters about Lilacs from the late 1800’s. I downloaded the newsletter and saved it in my Lilac folder. I have added the newsletter to the Lilacs Bonsai page under Deciduous Bonsai and Bonsai Tree Information page.