Lecture 13. The case for the world's first language
Lecture 14. Dialects, subspecies of species
Lecture 15. Dialects, where do you draw the line?
Lecture 16. Dialects, two tongues in one mouth
Lecture 17. Dialects, the standard as token of the past
Lecture 18. Dialects, spoken style, written style
Lecture 19. Dialects, the fallacy of blackboard grammar
Lecture 20. Language mixture, words
Lecture 21. Language mixture, grammar
Lecture 22. Language mixture, language areas
Lecture 23. Language develops beyond the call of duty
24. Language interrupted.
