Inside this Issue
The Cover ('Burgandy mound', Osteospermum hybrid)
The Editor's Page
By Donald S. Dimond
Arboretum Notes
Aphid Investigations at the Los Angeles State and County Arboretum
By Harry G. Walker, Mortimer D. Leonard and Leonid Enari
Poor Plants - Poor People
By Arie Haagen-Smit
Arboretum Plant Introduction
By Francis Ching
Know Your Soil
By Myron S. Anderson
A Siberian Alder
By Ross Goodrich
Bookshelf
Calendar 1969
Speaking for the Foundation
By Ernest Hetherington
