Proofs of Currents wpon the Earth’s surface. 103 
vided a character, as to leave no doubt in my own mind of 
its universality, but it may not be every where so obvious. 
Our hills show their hard primitive faces wherever a new turn- 
pike requires the removal of the natural soil to any extent, 
and this hardness of surface wethetands for a ak dos time the 
action of the atmosphere,—while the softer rocks, w —— 
themselves most frequently in alluvial districts, & a 
eEposurn; lose every trace of the original character of poe 
surfaces 
The long cultivation of the populous parts of Europe, may 
have tended to change or conceal the enced of the surfa- 
ces of those rocks which are most accessible. It may also be 
tiserved that the direction of the marks caused by this vio- 
lent friction, indicates a subsequent change in the axis of the 
earth. Now the parts which were near the poles at the time 
of revolution, would be Ee acted on by it, and would 
probably shew few if any of the striking marks of friction. 
A. thorough examination of the surface of rocks im the dif- 
ferent parts of the globe, may enable us to decide what 
parts must have constituted the poles at this period. Sup- 
pose the equator to have passed over the United States, and 
the revolution to have been towards the present north pole, 
according to the indications I have noticed, one pole 
have coon near the western coast of Africa, the other in the 
Pacific ocean. 
The indications of a flood having passed over the conti- 
nent of America, from north to south, have been noticed by 
different writers, whilst like cuinadines in Asia are said to 
int out its course there to have been from south te north. 
t will be perceived that'a revolution on the axis above as- 
ey would produce that‘effect. A curtent passing round 
the globe, would of course flow in opposite as re= 
the points of compass on its © e sides. It is per- 
ps idle to speculate on the causes which might have proda- 
ced such an event, as a change in the axis of the earth, or a 
the velocity of her diurnal motion—it is sufficient to say, it 
Were. as easy to the Almighty power which gave motion to 
the planets, as their original movement. It is obvious, bh how- 
* It is not however to be inferred that these indications: are €o ts 
primitive rocks ; they are no. hers more striking or more cece ner = on 
the pudding stones in this vicinity, the imbedded pebbles beit ng wo 
and polished as in the sohiaiet of we Halls of Congress in the Capital “Te 
account for this class of f roedae we st suppose this species tehave — 
occurred more than on 
