Science

The Riddle of the Universe at the close of the nineteenth century

Lectures and Essays

Recreations in Astronomy

The Chemistry of Hat Manufacturing

The Kingdom of Man

Plants Poisonous to Live Stock

Thunder and Lightning

New Subspecies of the Rodent Baiomys from Central America

Telescopic Work for Starlight Evenings

The micro-organisms of the soil

The logic of modern physics

The Chain of Life in Geological Time

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man

Darwinism stated by Darwin himself

The natural and artificial disintegration of the elements

Recent research on radioactivity

Novum organon renovatum

On adipocire, and its formation

The aneroid barometer: its construction and use

Earth at Night