The Earth's Shifting Crust by Charles Hapgood - wire of information

EARTH'S SHIFTING CRUST
deposition of the sediments) will probably completely obliterate every
trace of glaciation which the land surface may once have pre-
sented. . . .
The only evidence of the existence of land ice during former
periods which we can reasonably expect to meet with in the stratified
rocks, consists of erratic blocks which may have been transported by
icebergs and dropped into the sea. But unless the glaciers of such
periods reached the sea, we could not possibly possess even this evidence.
Traces in the stratified rocks of the effects of land-ice during
former epochs must, in the nature of things, be rare indeed (91:267-
69).
Croll was interested in pointing out the impermanence of
glacial evidence. He continued, therefore, as follows:
The reason why we now have, comparatively speaking, so little
direct evidence of former glacial periods will be more forcibly im-
pressed upon the mind, if we reflect on how difficult it would be in a
million or so of years hence to find any trace of what we now call the
glacial epoch. The striated stones would by that time be all, or nearly
all, disintegrated, and the till washed away and deposited in the
bottom of the sea as stratified sands and clays. . . . (91:270).
In view of the facts presented by Croll, it would appear to
be most unreasonable to insist on any fixed number of
Pleistocene glaciations simply because hitherto it has been
possible to group, in a very rough way, the comparatively
few evidences we have in four glacial periods.
It is a well-known fact that the chronology of four Pleisto-
cene glaciations has been built up on the foundation of the
assumption that all glacial epochs were the result of lowered
world temperatures. Thus the European glaciations were
declared to have been contemporary with the glaciations in
America, although, as a matter of fact, no evidence of this
existed. The assumption was based solely on astronomical
and other theories of the causes of glaciation that we have
shown to be inadequate. If the grouping of all European
glacial evidences into only four major glaciations is questionable,
and if, in addition, there is no good evidence that
these glaciations were really contemporary with those in
America, then the possibility of a large number of different