LESSON IX. –PART 1. EXPLANATION OF VARIOUS PHENOMENA CONTINUED. VOLCANIC DEPOSITS.
7 Joulu 202421min
LESSON VIII. –PART 2. EFFECTS ATTRIBUTABLE TO UPHEAVAL AND SUBSIDENCE.
7 Joulu 202443min
LESSON X. –PART 3. CRETACEOUS EPOCH. MODERN EPOCH. GEOGENY.
7 Joulu 202433min
LESSON VI. –PART 3: VOLCANIC ISLANDS.
7 Joulu 202437min
LESSON VI. –PART 2: VOLCANIC PHENOMENA.
7 Joulu 202426min
LESSON X. –PART 2. ORGANIC REMAINS.
7 Joulu 202438min
LESSON IX. –PART 2. EXPLANATION OF VARIOUS PHENOMENA CONTINUED. GRANITE AND METAMORPHISM.
7 Joulu 202424min
