inks shall have been completed, it will stand
out the greatest monument to human labor and genius which the world
presents.

The single line from Mackinaw to Pensacola has been looked upon as one
of the most important undertakings of the age. We extract from the
"Exposition of its Plan and Prospects," by E. D. Mansfield, Esq., some
of the facts, which exhibit its importance, and bearing, and influence
on Mackinaw City.

"To illustrate," says the Exposition, "the value of this North and
South National Line, by its power of producing commerce, mark, in a
tabular form, the natural products of each degree of latitude, thus:--

_States._ _Latitude._ _Productions._

Florida, 31 deg. Oranges.
" 31 " Sugar.
" 31 " Cotton.
Alabama, 32 " "
" 33 " "
" 34 " Cotton, Corn.
Tennessee, 35 " " "
" 36 " Cotton, corn, tobac., iron.
Kentucky, 37 " Corn, tobac., coal, iron.
" 38 " Corn, wh't, cat. tob. h'mp.
Ohio, 39 " Corn, wh't, cat. h'gs, wine.

" 40 " Wh't, c'rn, h'gs, cat., flax.
" 41 " Wheat, corn, cattle.
Michigan, 42 " Wheat, cattle, hay, wool.
" 43 " Pine, cedar, coal.
" 44 " Pine, cedar, coal.
" 45 " Pine, hemlock, cedar.
" 46 " Pine, copper, lead, fish.

"This statement is enough to show an extraordinary stimulus to
commerce, on a line of railway. The length of the entire line will be
less than half that which is proposed to be made from Cincinnati and
other cities to San Francisco; yet, will pass through varieties of
production, which that line cannot have. In two days, every inhabitant
on that line may be supplied, from their native source, with sugar,
cotton, corn, wheat, tobacco, iron, coal, lead, copper, pine, cedar,
with wool, flour, hemp, and fruits of every description; with fish of
the sea and fish of the lakes; with bread, and oil, and wine; in fine,
with everything that supports, clothes, or houses man; with everything
that supplies his wants, or contributes to his material happiness."

It is obvious, that such a line of railroad as this--peculiar in its
resources, vast in its comprehensions, and embracing in its grasp all
the products of tropic or of temperate climes--must, of itself, rear,
at its _termini_, commerc