The Nature of Animal Light

A systematic survey of bioluminescence identifies luminous organisms across plants and animals, reviews historical observations and common misidentifications, and distinguishes biological light from related phenomena such as fluorescence and phosphorescence. It analyzes physical properties including spectra, polarization, intensity, and the relation of radiation to temperature, and compares intermittent and continuous emissions. The work examines the anatomy and organization of luminous organs, contrasts intracellular and extracellular production, discusses rhythmic and flashing behaviors and bacterial luminescence, and evaluates chemical mechanisms—particularly oxidation reactions—alongside experimental methods and quantitative measurements, with references for further study.