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CONTENTS. 



PAGE. 



PREFACE . .. . . vii 



THE SCOPE OF BIOLOGY . . . . . . 1 



(From Herbert Spencer's Synthetic Philosophy.) 



THE BIOLOGY OF DAILY LIFE. 



CHAPTER I. The Law of Interchange . . .8 



CHAPTER II. The Law of Interchange in relation to the 

 Body in health and its aliment . . .8 



CHAPTER III. The Law of Interchange in relation to the 

 Body in disease, and the remedies for disease . 15 



CHAPTER IV. How the Law of Interchange explains the 

 relations between the Body and lower organisms, par- 

 ticularly micro-organisms, in health and natural decay 26 



CHAPTER V. How the Law of Interchange explains the 

 relations between the Body and lower organisms, par- 

 ticularly [micro-organisms, in disease and non-natural 

 death . . . . . . . 43 



CHAPTER VI. The Protoplasm theory particularized and 

 tested by facts, and re-stated with the necessary 

 corrections . . . . . .64 



APPENDIX TO CHAPTER VI. Eemarks on the general 

 reasoning on which the conclusions of the specific 

 microbe theorists are based, and on some of the methods 

 employed by them for classifying and identifying 

 micro-organisms . . . . . 86 



CHAPTER VII. How the three desiderata of the celebrated 

 physician Sydenham have been discovered after two 

 hundred years of waiting . . . .94 



CHAPTER VIII. The Banquet of Alma, or Diet of Health, 

 not a meagre fare, but while so cheap as to render 

 starvation almost an impossibility, when once the truth 

 is fully known, can be even luxurious . . . 118 



CHAPTER IX. The importance of using no intractable 



materials, for the Construction of the Human Body . 133 



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