• Part IV. Chapters 1-2 and Judgement of the Royal Danish Society of Sciences
    42 mins
  • Part III. Chapter 9
    29 mins
  • Part III. Chapter 8
    49 mins
  • Part III. Chapter 7
    13 mins
  • Part III. Chapter 6
    36 mins
  • Part III. Chapters 3-5
    40 mins
  • Part II. Chapter 9; Part III. Chapters 1-2
    33 mins
  • Part II. Chapters 7-8 and Note on Ch. 8
    27 mins