is the estimate of Prof. Russell, 4,000,000,000 to 8,000,000,000
years, founded on the radio-activity theory. All these wild estimates
are out of the question.

The recession of the Niagara Falls from Lake Ontario required only
7,000 to 11,000 years. It required only 8,000 years for the
Mississippi River to excavate its course.

Prof. Winchell estimates that the Mississippi River, has worn a gorge
100 feet deep, 8 miles long, back to the Falls of St. Anthony, in
about 8,000 years. The whole thickness of the Nile sediment, 40 feet
in one place, was deposited in about 13,000 years. Calculations by
Southall and others from certain strata have fixed man's first
appearance on the earth at 8,000 years, in harmony with Scripture.

LeConte, in his Geology, p. 19, says, "Making due allowance for all
variations, it is probable that all land-surfaces are being cut down
and lowered by rain and river erosion, at a rate of one foot every
5,000 years. At this rate, if we take the mean height of lands as 1200
feet, and there be no antagonistic agency at work raising the land,
all lands would be cut down to the sea level and disappear in
6,000,000 years."

May we not from these data, judge approximately of the age of the
world, and show by this proof also, that the world can not be at all
as old as the evolution theory demands? If the surface of the earth
will be worn down 1200 feet on an average in 6,000,000 years, would it
not also be true that the surface has been worn down at least 1200
feet in the last 6,000,000 years? For the higher the surface, the more
rapid the erosion. And if the earth is 8,302,210 years old, as Lord