Rudolf Steiner's first scientific course also called the Light Course. Audio created by rudolfsteineraudio.com
part 2 - 0:43:37
part 3 - 1:25:36
part 4 - 2:02:27
part 5 - 2:32:51
part 6 - 2:56:06
part 7 - 3:33:08
part 8 - 4:03:07
part 9 - 4:37:25
part 10 - 5:14:39
part 11 - 5:53:48