CONTENTS. 



ART. PAGE 



2.5. Equation of Applied Animal Power . . . . -79 

 26. Selection and Care of Men and Animals . . . .80 



III. FINAL DEDUCTIONS. 



27. Progress of Improvement 84 



28. Objects of Search . . 86 



29. The Living Body as a Machine ...... 89 



30. Methods of Production of Animal Energy . . . -92 



31. Advantages of Substitution of Nature's Methods . . -94 



32. Costs 97 



