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The Nature of Animal Light by E. Newton Harvey Pdf
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The Nature of Animal Light (Classic Reprint) by E. Newton Harvey Pdf
Excerpt from The Nature of Animal Light Bioluminescence, the production of light by animals and plants, has always excited the admiration of the layman and the wonder of the scientist. It is not surprising that an enormous literature dealing with the subject has grown up. A large part of this literature, however, is made up merely of reports that a certain animal is luminous, or records of especially brilliant phosphorescence of the sea. Among those who have inquired somewhat more carefully into the nature and causes of light production may be mentioned the names of Beijerinck, R. Boyle, Dahlgren, Dubois, Ehrenberg, Krukenberg, Mangold, McDermott, Molisch, Panceri, Pfluger, Phipson, Quatre-fages, Spallanzani, and Trojan. Several of these men have written comprehensive monographs on the subject. It is not the purpose of this book to deal with every phase of bioluminescence. Volumes could be written on the evolutionary side of the problem and the structure and uses of luminous organs. These questions can only be touched upon. Neither is it my purpose to discuss the ultimate cause of the light, whether due to vibration of electrons or to other causes. That problem must be left to the physicist, although it is highly probable that a study of animal light will give important information regarding the nature of light in general, and no theory of light can be adequate which fails to take into account the extraordinary powers of luminous animals. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."
The Nature of Animal Light by E Newton 1887-1959 Harvey Pdf
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The Nature of Animal Light by E. Newton Harvey, Ph. D Pdf
It is not the purpose of this book to deal with every phase of bioluminescence, the production of light by animals and plants. Volumes could be written on the evolutionary side of the problem and the structure and uses of luminous organs. These questions can only be touched upon. Neither is it the purpose to discuss the ultimate cause of light, whether due to vibration of electrons or to other causes. That problem must be left to the physicist, although it is highly probably that a study of animal light will give important information regarding the nature of light in general, and no theory of light can be adequate which fails to take into account the extraordinary powers of luminous animals. This work is concerned largely with the physical characteristics of animal light and the chemical processes underlying its production. CONTENTS (Originally published in 1920.) I. Light-Producing Organisms Early records and theories. "Shining fish and flesh." "Burning of the sea." Distribution of luminous organisms in plant and animal kingdoms. Secondary luminosity. False luminosity. St. Elmo's fire. Ignis fatuus. Flashing of flowers. Luminosity in man. Use to man of photogenic organisms. II. Luminescence and Incandescence The complete spectrum. Radiation and temperature. "Cold light." Thermoluminescence. Phosphorescence and fluorescence. Triboluminescence and piezoluminescence. Crystalloluminescence. Chemiluminescence. III. Physical Nature of Animal Light Purkinje phenomenon. Color and spectra of animal light. Polarization. Efficiency of animal light. Infra-red radiation. Ultra-violet radiation. Luminous efficiency and visual sensibility. Production of radiation penetrating opaque objects. Intensity of animal light. Summary. IV. Structure of Luminous Organs Photochemical and chemiphotic changes. The eye and the luminous organ. Intracellular and extracellular luminescence. Continuous and intermittent luminescence. Periodicity of luminescence. Luminous bacteria. Noctiluca and photogenic granules. Chætopterus and luminous gland cells. Cypridina. Luminous glands. The firefly. Luminous organs (photophores) with lenses, reflectors, opaque and color screens. Uses and purpose of animal light. V. The Chemistry of Light Production, Part I Boyle's and Spallanzani's experiments. Shining wood and burning coal. Oxygen and luminescence. Carbon dioxide and luminescence. Heat production during luminescence. Luminescence and respiration. Water and luminescence. Phipson's noctilucin. Luciferin and luciferase. Photogenin and photophelein. Proluciferin. Oxyluciferin. Pyrophorin or luciferescein. Chemiluminescent reactions. "Biozymoöxyluminescence." VI. The Chemistry of Light Production, Part II Pyrophorus luciferin and luciferase. Pholas luciferin and luciferase. Cypridina luciferin; stability, hydrolysis by acid and enzymes, adsorption, precipitation, salting out, solubility, distribution. Cypridina luciferin a proteose? Cypridina luciferase and properties. Cypridina luciferase an albumin. Specificity of luciferase. Action of fat solvent anæsthetics. Action of cyanides. Oxyluciferin. Nature of oxidative reaction. VII. Dynamics of Luminescence Minute amounts of material for luminescence. Reaction velocity and chemiluminescence. Temperature and chemiluminescence. Oxidation in steps. Concentration and bioluminescence. Temperature and bioluminescence. Oxidation with and without luciferase. Reaction velocity and color of bioluminescence.
Polarized Light in Animal Vision by Gábor Horváth,Dezsö Varju Pdf
The subject of this volume is two-fold. First, it gathers typical polarization patterns occurring in nature. Second, it surveys the polarization-sensitive ani mals, the physiological mechanisms and biological functions of polarization sensitivity as weIl as the polarization-guided behaviour in animals. The monograph is prepared for biologists, physicists and meteorologists, espe cially for experts of atmospheric optics and animal vision, who wish to under stand and reveal the message hidden in polarization patterns of the optical environment not directly accessible to the human visual system, but measur able by polarimetry and perceived by many animals. Our volume is an attempt to build a bridge between these two physical and biological flelds. In Part I we introduce the reader to the elements of imaging polarimetry. This technique can be efflciently used, e. g. in atmospheric optics, remote sens ing and biology. In Part 11 we deal with typical polarization patterns of the natural optical environment. Sunrise/sunset, clear skies, cloudy skies, moonshine and total solar eclipses all mean quite different illumination conditions, wh ich also affect the spatial distribution and strength of celestial polarization. We pre sent the polarization patterns of the sky and its unpolarized (neutral) points under sunlit, moonlit, clear, cloudy and eclipsed conditions as a function of solar elevation. The polarization pattern of a rainbow is also shown. That part of the spectrum is derived in which perception of skylight polarization is optimal under partly cloudy skies.
Polarized Light and Polarization Vision in Animal Sciences by Gábor Horváth Pdf
This book covers advances made since the 2004 Springer volume “Polarized Light in Animal Vision” edited by Horvath and Varju, but also provides reviews and synopses of some areas. Part I examines polarization sensitivity across many animal taxa including vertebrates and invertebrates and details both terrestrial and aquatic life. Part II is devoted to the description of polarized light in nature and explores how the physics of light must be taken into account when understanding how polarized light is detected by the visual system. This includes underwater polarization due to scattering; polarization patterns reflected from freshwater bodies; polarization characteristics of forest canopies; normal and anomalous polarization patterns of the skies; skylight polarization transmitted through Snell’s window and both linearly and circularly polarized signals produced by terrestrial and aquatic animals. This Part also examines polarized “light pollution” induced by anthropogenic factors such as reflection off asphalt surfaces, glass panes, car bodies, and other man-made structures that are now known to form ecological traps for polarotactic insects. Part III surveys some of the practical applications of polarization vision including polarization-based traps for biting insects, ground-based polarimetric cloud detectors and an historical examination of the navigational abilities of Viking seafarers using the sky polarization compass. The deterrent qualities of ungulate pelage to polarization-sensitive biting insects is also examined in this section.
The Influence of Ocular Light Perception on Metabolism in Man and in Animal by F. Hollwich Pdf
This book was written to show that light is a primal element of life. All life originates and develops under the influence of the light of the sun, that "super terrestrial natural force" (Goethe). Sunlight influences the vital processes not onlyofthe plant (e. g. , heliotropism, photosynthesis) and the animal (e. g. , color change, maturation of the gonads) but of man as well. The human organism too reacts "heliotropically," as the 24 hour rhythm of the sleep-waking cycle demonstrates. of Artists have always perceived clearly the intensive stimulatory effect sunlight on their activity. One is reminded here ofCesare Lombroso, who wrote to his daughter "that thoughts come in the greatest profusion when (my) room is flooded with the sun's rays. " Richard Wagner exclaimed: "Ifonly the sun would come out, I would have the score finished in no time. " Bernard Shaw had a little cottage where he worked that could be turned according to the position of the sun. The composer Humperdinck wrote: "The sun is indispensable for my work; that is why it is important for me to have my study face east or south. " As these few examples indicate, it is above all those active in the arts who intuitively grasp the positive influence of sunlight on the psycho-physical effi ciency of their organism. In an age, however, when fluorescent lighting turns night into day, we are in danger of forgetting that man is a creature of nature as well as of culture.
Biological Lectures Delivered at the Marine Biological Laboratory of Wood's Hole, in the Summer Session of 1895 by Marine Biological Laboratory (Woods Hole, Mass.) Pdf
Monographs on Experimental Biology the Nature of Animal Light by E. Newton Harvey Pdf
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