TABLE OF CONTENTS, 



CHAPTER I. 

 INTRODUCTORY. 



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Living things and lifeless things. The contrast and the likeness between. 

 living matter and lifeless matter. The journey of lifeless matter 

 through living things, Analogy between a fountain, a flame or a 

 whirlpool, and a living organism. Living matter is lifeless matter in 

 a peculiar state or condition. Its characteristic properties. Biology, 

 its scope and its subdivisions. The Biological sciences. The relations 

 of Biology to Zoology and Botany, Morphology and Physiology. 

 Definitions and inter-relations of the biological sciences. Psychol- 

 ogy, Sociology. Definition of General Biology. ... .. OD ..<,........ 1 



CHAPTER II. 



THE STRUCTURE OF LIVING THINGS. 



Their occurrence and their size, Organisms composed of organs. Func- 

 tions. Organs composed of tissues. Differentiation. Tissues com- 

 posed of cells, Definitions, Unicellular organisms. Living organ- 

 isms contain lifeless matter. Lifeless matter occurs in living; 



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tissues and cells. Examples. Lifeless matter increases relatively 

 with age. Summary statement of the structure of living things, 

 The organism as a whole the Body more important than any of its 



CHAPTER III. 



PROTOPLASM AND THE CELL, 



Protoplasm "the physical basis of life." Historical sketch. The com- 

 pound microscope and the discovery of cells in cork. The achromatic 

 objective. The cell-theory of Schleideu and Schwann. Virchow 

 and Max Schultze. Modern meaning of the term "cell." The dis- 

 covery of protoplasm and sarcode and of their essential similarity, 



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