- PREFACE.免费
- CHAPTER I. FROM KNOWN TO UNKNOWN免费
- CHAPTER II. REVIEW OF THE POSITION免费
- CHAPTER III. THE PROBLEMS PRESENTED.免费
- CHAPTER IV. INITIAL VARIATIONS AND TOTAL EXPERIENCE.免费
- CHAPTER V. METHOD OF PROOF.免费
- CHAPTER VI. EVIDENCE FROM ARRANGEMENT OF HAIR.免费
- CHAPTER VII. THE EVOLUTION OF PATTERNS OF HAIR.免费
- CHAPTER VIII. CAN MUSCULAR ACTION CHANGE THE DIRECTION OF HAIR IN THE INDIVIDUAL?免费