Introduction to the Study of Biology

r a merely elementary work. It is hoped, however, that most of those subjects are touched upon, a knowledge of which would be useful to the student of living or extinct forms of life, or to the general reader. -- C O N T E N T S -- CHAPTER I. PAGE Definition of Biology-Differences between dead and living bodies - Nature and conditions of life-Physical basis of life-Protoplasm-Connection between life and the matter of life-Organisation - Light - Air - Temperature - Death - Use of the term c vital force, . . . . 1-18 CHAPTER 11. Differences between animals and plants-Regnum Protisticum of Hzeckel-Higher plants distinguished from higher animals-Comparison of the lower animals with the lower plaats-Form-Internal structure-Chemical composition-Power of locomotion-Nature of the food, . . . . . 19-25 CHAPTER 111. Differences between different organisms-Morphology-Physiology - Specialisation of functions-Morphological type-Synopsis of the main divisions of the animal and vegetable kingdoms, 26-43 CHAPTER IV. Analogy - Homology-Serial Homology - Lateral Homology-Homogeny and Homoplasy - Homomorphism - Mimicry-Correlationofgrowth, . . . 44-5 CONTENTS. vii CHAPTER V. Principles of classification-Definition of Species-Genus-Family - Order-Class-Sub-kingdom-Impossibility of a linear classification, . . . . . . 56-63 CHAPTER VI. S Elementary chemistry of animals and plants-Chemistry of animals - Fats-Albumen-Fibrine - Caseine - Proteine of Mulder-Chemistry of vegetables-Starch-Cellulose-Sugar - Albuminous compounds of plants, . . 64-69 CHAPTER VII. Elementary structure of living bodies-Protoplasm or Bioplasmhfolecules - Cells-The cell-wall - The cell-contents - The nucleus-Cell-multiplication, . . . . 70-76 CHAPTER VIII. Physiological functioils of animals and plants-Animal and vege- table functions-Unicellular plants-Foraminifera-Vital force as manifested in the digestive process of plants, . 77-83 CHAPTER IX... --This text refers to an alternate Paperback edition.