Capitolo 27
geologist uses for interpreting the history of the globe. Now it is
it understood that the strengths of nature have always produced the
same results as they now do. From the first duration to the
present, stones are forming. There, where conditions were
favorable beds, great of limestone, it formed from hulls and
coral, obstacles above from the action of the sea < 5>--in the other places,
thick beds of sandstone or sand, consolidated later
in sandstone--you/he/she was depositing. On the surface of earth, in places,
great beds of vegetable < the i>debris < / the > you/he/she had been converting in
coal. We can now see easily as the rests of organic bodies,
growing to the duration of the formation of these beds, you/he/she should be
preserved in a form of fossil. Stones of limestone are adorned thickly of studs
in places with all the son-in-laws of the sea formations. Coal fields
you reveal he/she wonders some first vegetative growth. From stones of sandstone,
and beds of shaly, we learn strange histories of the animal life to the
time that they was forming. From an accurate study of these rests
together with the formation in which they happens, not only in the one
place but all on the earth, geologists gradually have
explained the history of the life on the globe. You/he/she is admitted that,
to best, our knowledge in that direction is fragmentary.
This rises from errors in observation as that fossil
formations are rare, or at least the places where they is known
to exist is but little. Then our knowledge of the past is as if us
you/he/she was examining some record from that pages, chapters and also
volumes, have been drawn out.
Illustration of Paleozoic Forest---------------
In consequence of this defective record we am not able, as he/she anchor,
you trace a following and gradual growth from the low forms of animal
and plant, life of which you/he/she has characterized the last period
Archean calculates, to the extremely organized typist of the present.
The record suddenly stops and when we pick up again the thread
we am surrounded by more advanced types taller forms of the life.