In this deposit around the lake
(now dry) fossil bones occur--elephas, megatherium, horse, etc. The
large alluvium plains north of lake, cut through by rivers, allow
these bones to settle on their rocky beds. This deposit is of greater
depth in places west of lake.
Now, if we suppose these animals were exterminated in glacial times,
it remains for us to show when this was consummated.
Subsequent to the lake deposit and exposure no new proofs of its
continuance are found.
1. This deposit occurred after the coast range was elevated.
2. Elevation was caused by a volcanic ash eruption, 5 or 6 of a
series. (Geologically demonstrated in my letters to _Antiquarian_ and
_Science_.)
3. Coast hills inclosed sea sediment, now rock containing fossil
leaves.
4. Wash from this sediment, carried with care, formed layers of
sandstone, up to ceiling.
5. This ceiling was covered with elaborate inscriptions.
6. The inscription sent you was a near neighbor to cave.
7. Another representing a saurian reptile on large granite bowlder is
also a neighbor (a glacial dropping).
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