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Studies in the Herbarium and the Field, I.
Broad-leaved Evergreens in the Arnold Arboretum
Citrus for ornamental planting in California
Arthrothynnus, a New Genus of Orchid-pollinating Thynninae (Hymenoptera: Tiphiidae)
Contributions to the Queensland Flora. No. 2.
Honey as a carrier of intestinal diseases
New and Rare Ornamental Woody Plants Recently Distributed by the Arnold Arboretum
Notes on Queensland Ants.
Seven New Species of Heliotropium (Boraginaceae) from the Monsoon and Arid Zones of Australia
Presidential Address: Energy and the Future of Mankind.