The anatomy and some biological aspects of the "Ball Moss," Tillandsia recurvata L.,

"Literature cited": p.22.

Certain biological and biochemical aspects of the use of ionizing radiation in immunization against parasitic diseases, Yugoslavia.

Translated from Spomenica u cast novoizabranih clanova Sprske akademije nauka i umetnosti. Serbo-Croation, 1967, pp. 113-121.

Entomology, with special reference to its biological and economic aspects,

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Technical aspects of biological defense.

January 1971.

Fifty years of Darwinism; modern aspects of evolution; centennial addresses in honor of Charles Darwin, before the American association for the advancement of science, Baltimore, Friday, January 1, 1909.

Photocopy -- 22 cm.