友情提示:如果本网页打开太慢或显示不完整,请尝试鼠标右键“刷新”本网页!阅读过程发现任何错误请告诉我们,谢谢!! 报告错误
飞读中文网 返回本书目录 我的书架 我的书签 TXT全本下载 进入书吧 加入书签

autobiography and selected essays-第23章

按键盘上方向键 ← 或 → 可快速上下翻页,按键盘上的 Enter 键可回到本书目录页,按键盘上方向键 ↑ 可回到本页顶部!
————未阅读完?加入书签已便下次继续阅读!




in various parts of Western Europe; of flint implements; obviously

worked into shape by human hands; under circumstances which show

conclusively that man is a very ancient denizen of these regions。



It has been proved that the old populations of Europe; whose

existence has been revealed to us in this way; consisted of

savages; such as the Esquimaux are now; that; in the country which

is now France; they hunted the reindeer; and were familiar with the

ways of the mammoth and the bison。  The physical geography of

France was in those days different from what it is nowthe river

Somme;'69' for instance; having cut its bed a hundred feet deeper

between that time and this; and; it is probable; that the climate

was more like that of Canada or Siberia; than that of Western

Europe。



The existence of these people is forgotten even in the traditions

of the oldest historical nations。  The name and fame of them had

utterly vanished until a few years back; and the amount of physical

change which has been effected since their day; renders it more

than probable that; venerable as are some of the historical

nations; the workers of the chipped flints of Hoxne or of Amiens '70'

are to them; as they are to us; in point of antiquity。



But; if we assign to these hoar relics of long…vanished generations

of men the greatest age that can possibly be claimed for them; they

are not older than the drift; or boulder clay; which; in comparison

with the chalk; is but a very juvenile deposit。  You need go no

further than your own sea…board for evidence of this fact。  At one

of the most charming spots on the coast of Norfolk; Cromer; you

will see the boulder clay forming a vast mass; which lies upon the

chalk; and must consequently have come into existence after it。

Huge boulders of chalk are; in fact; included in the clay; and have

evidently been brought to the position they now occupy; by the same

agency as that which has planted blocks of syenite from Norway side

by side with them。



The chalk; then; is certainly older than the boulder clay。  If you

ask how much; I will again take you no further than the same spot

upon your own coasts for evidence。  I have spoken of the boulder

clay and drift as resting upon the chalk。  That is not strictly

true。  Interposed between the chalk and the drift is a

comparatively insignificant layer; containing vegetable matter。

But that layer tells a wonderful history。  It is full of stumps of

trees standing as they grew。  Fir…trees are there with their cones;

and hazel…bushes with their nuts; there stand the stools of oak and

yew trees; beeches and alders。  Hence this stratum is appropriately

called the 〃forest…bed。〃



It is obvious that the chalk must have been up…heaved and converted

into dry land; before the timber trees could grow upon it。  As the

boles of some of these trees are from two to three feet in

diameter; it is no less clear that the dry land this formed

remained in the same condition for long ages。  And not only do the

remains of stately oaks and well…grown firs testify to the duration

of this condition of things; but additional evidence to the same

effect is afforded by the abundant remains of elephants;

rhinoceroses; hippopotomuses and other great wild beasts; which it

has yielded to the zealous search of such men as the Rev。 Mr。 Gunn。'71'



When you look at such a collection as he has formed; and bethink

you that these elephantine bones did veritably carry their owners

about; and these great grinders crunch; in the dark woods of which

the forest…bed is now the only trace; it is impossible not to feel

that they are as good evidence of the lapse of time as the annual

rings of the tree…stumps。



Thus there is a writing upon the walls of cliffs at Cromer; and

whoso runs may read it。  It tells us; with an authority which

cannot be impeached; that the ancient sea…bed of the chalk sea was

raised up; and remained dry land; until it was covered with forest;

stocked with the great game whose spoils have rejoiced your

geologists。  How long it remained in that condition cannot be said;

but 〃the whirligig of time '72' brought its revenges〃 in those days

as in these。  That dry land; with the bones and teeth of generations

of long…lived elephants; hidden away among the gnarled roots and

dry leaves of its ancient trees; sank gradually to the bottom of

the icy sea; which covered it with huge masses of drift and boulder

clay。  Sea…beasts; such as the walrus; now restricted to the

extreme north; paddled about where birds had twittered among the

topmost twigs of the fir…trees。  How long this state of things

endured we know not; but at length it came to an end。  The upheaved

glacial mud hardened into the soil of modern Norfolk。  Forests grew

once more; the wolf and the beaver replaced the reindeer and the

elephant; and at length what we call the history of England dawned。



Thus you have within the limits of your own county; proof that the

chalk can justly claim a very much greater antiquity than even the

oldest physical traces of mankind。  But we may go further and

demonstrate; by evidence of the same authority as that which

testifies to the existence of the father of men; that the chalk is

vastly older than Adam himself。



The Book of Genesis informs us that Adam; immediately upon his

creation; and before the appearance of Eve; was placed in the

Garden of Eden。  The problem of the geographical position of Eden

has greatly vexed the spirits of the learned in such matters; but

there is one point respecting which; so far as I know; no

commentator has ever raised a doubt。  This is; that of the four

rivers which are said to run out of it; Euphrates and Hiddekel '73'

are identical with the rivers now known by the names of Euphrates

and Tigris。



But the whole country in which these mighty rivers take their

origin; and through which they run; is composed of rocks which are

either of the same age as the chalk; or of later date。  So that the

chalk must not only have been formed; but; after its formation; the

time required for the deposit of these later rocks; and for their

upheaval into dry land; must have elapsed; before the smallest

brook which feeds the swift stream of 〃the great river; the river

of Babylon;〃'74' began to flow。





Thus; evidence which cannot be rebutted; and which need not be

strengthened; though if time permitted I might indefinitely

increase its quantity; compels you to believe that the earth; from

the time of the chalk to the present day; has been the theatre of a

series of changes as vast in their amount; as they were slow in

their progress。  The area on which we stand has been first sea and

then land; for at least four alternations; and has remained in each

of these conditions for a period of great length。



Nor have these wonderful metamorphoses of sea into land; and of

land into sea; been confined to one corner of England。  During the

chalk period; or 〃cretac
返回目录 上一页 下一页 回到顶部 0 0
未阅读完?加入书签已便下次继续阅读!
温馨提示: 温看小说的同时发表评论,说出自己的看法和其它小伙伴们分享也不错哦!发表书评还可以获得积分和经验奖励,认真写原创书评 被采纳为精评可以获得大量金币、积分和经验奖励哦!