Science

Selenium cells

The Other Side of Evolution: Its Effects and Fallacy

The micro-organisms of the soil

Telescopic Work for Starlight Evenings

Pennsylvanian invertebrates of the Mazon Creek Area, Illinois: Eurypterida

Modern cosmogonies

The Coal Measures Amphibia of North America

Biology versus Theology

Geographic Variation in the North American Cyprinid Fish, Hybopsis gracilis

Guide to the Geologic Map of Illinois

The gradual acceptance of the Copernican theory of the universe

A Further Investigation of the Symmetrical Chloride of Paranitroorthosulphobenzoic Acid

New Species and Synonymy of American Cynipidæ

Explanation of Terms Used in Entomology

The Bermuda Triangle Parado

Palæontological Report of the Princeton Scientific Expedition of 1877

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

Studies on Fermentation. The diseases of beer, their causes, and the means of preventing them

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

The Geological History of Fossil Butte National Monument and Fossil Basin