Life Sciences

Man's Place in the Universe A Study of the Results of Scientific Research in Relation to the Unity or Plurality of Worlds, 3rd Edition

Pennsylvanian invertebrates of the Mazon Creek Area, Illinois: Eurypterida

Biology versus Theology

The Other Side of Evolution: Its Effects and Fallacy

On the Continuity of Effect of Light and Electric Radiation on Matter

Selenium cells

On Electric Touch and the Molecular Changes produced in Matter by Electric Waves

Geographic Variation in the North American Cyprinid Fish, Hybopsis gracilis

The Conditions of Existence as Affecting the Perpetuation of Living Beings

Cambrian Ocean World

The Lost Tribes of Bigfoot

The Secret Life of Salmon

First Steps

Sex in the Sea

Harmony

Peripheral Visions

Opening the Mind's Eye

Biotechnology and Society

Evolution and Adaptation

Field Book: Pennsylvanian Plant Fossils of Illinois