Bulletin of Popular Information (Arnold Arboretum, Harvard University), Series 4, Vol. 8, No. 1 (APRIL 26, 1940), pp. 1-5, 7-11 (10 pages)
Arnoldia
Arnoldia is the magazine of the Arnold Arboretum. The below link will allow you to search though its contents for valuable information on the Arnold Arboretum.