TABLE OF CONTENTS 



Chapter 



Preface ..... 



I. The Chart of Evolution 



II. Health and Business 



III. Business Cycles in Foreign Countries . 



IV. How Health does its Work . 



* V. Climate and Health .... 



VI. The Importance of Variability 



VII. The Voyage of Evolution . 



^ VIII. The Environment of Mental Evolution . 



IX. The Origin of New Types among Animals 



X. The Origin of New Types among Men . 



XI. The Example of Rome 



XII. The Problem of Turkey 



XIII. Germany and Her Neighbors 



Appendix 



A. Elimination of Secular Trend . 



B. Construction of Climographs 



^ C. Extinction of Mammals during Glacial Period 



D. References . . . . . 



E. Proper Air in Houses .... 



F. Directions for Ventilation and Humidification 



Page 



7 



16 



26 



43 



51 



58 



87 



105 



124. 



148 



164 



186 



208 



227 



245 

 249 

 256 

 260 

 266 

 274 



Index 



277 



