Inside this Issue
The Cover (Syringa vulgaris)
Arboretum Notes
Man and Air - Threats to Prairie Survival
By George P. Hanson
Buxus harlandii: A Versatile Garden Ornamental
By Ross Goodrich
The Function of a Botanic Garden as a Bird Refuge
By Robert and Elizabeth Copper
Rose Wilt or Dieback - A New Virus Disease Attacks Roses in California
By Paul Cheo
Bookshelf
By Mildred E. Mathias
Adult Education Schedule
Calendar 1971
Speaking for the Foundation
By Ernest Hetherington
