Burlington hawk-eye. [volume] (Burlington, Iowa) 1845-185?, 1851-09-25
Discovery Il new and Scientific mode q Hast
ing Rocks under Water.

We commend to the attention of our readers
the article from the correspondent OF the INA
tional Intelgencer, ''showing the novel, ingenious
and perfectly successful method of blasting rocks
from the channel Of Long Island Sound, at "Heh
Gate.r in the neghborhood of New York City.
The account given Of the success OF NJ Ma'i'e-
fort, in blowing the rocks to atoms without drill
ling, would be worthy Of attention at any time,
but it is particularly so at the present time, and
to the people of the North West, when the sub
icct OF removing the distractions from the Mis-
siss;ppi river is an all-engrossing topic.
From the account given by the Inteligencer's
correspondent, it seems that M. Ma'liefert mas
succeeded in blowing away four feet of the rock;
that is, the water is now four feet deeper than
was before he commenced operations. An ad-
vantage attending this method is, that the deeper
the water is, the better.
WHY could not this plan Of NJ. Maillefert be
anolied to removing the rocks from the channel
Of the Mississippi? We do not see but that eve
ry thing promises as favorably for the success OF
such operations at the Rapids, as at the "heIi
Gaten rocks. and we hope the subject may at any
rate be inquired into. We take it for granted,
that the general sentiment Of the North West
out of the influence Of keokuk and Col. Saml X.
Curts-is that the rocks are to be cleared out OF
rhe river. 50 as to furnish at all times safe and
commodious channel for boats. in preference to
canal around the Rapids with locks. Ii the
distractions are TO be removed by blasting, we
think that the plan Of NJ Maillefert will prove
the most expeditions and economical that can be
devised. The depth Of water on Pot Rock at
"Hell Gate'' is only eighteen feet. That depth
could no doubt have been easily obtained at the
Rapids during the high water OF the past season.
MIR Jno H. B. Latrobe, of Baltimore has writ
ten long letter 10 some gentlemen at Newport,
Rhode Island. in reply to Victor Hugo, the cele-
brated French Poet and Novelist, on the subject
Of slavery and the negro race in the United States.
The letter is published in the ''Newport News"
and is commended in the eastern papers as one
of the ab!est and most conclusive articles on the
subject ever published. In Newport where first
published, il created great interest; copies of it
were eagerly sought after by some who had been
inclined to side with Victor Hugo. Indeed,
some who had taken part or sympathised in the
excitement against slavery, which had been az
tempted to be got up at the north, after reading
the letter, did not hesitate to SAL they were wrong
in the opinions they had formed, and regretted
the course they had taken.
Mr. Latrobe is one of the ablest lawyers in the
country. aud ENJOYS distinguished reputation as
profound thinker. He is Presiden: of the Ma
ryland Colonization Society, and although living
in slave State, no man possesses more humane
feelings towards slaves. The letter is entirely
too long for our columns, and we can only un-
dertake to give the conclusions at which the wri-
ter arrives:
This letter, INV dear Sir, Is very long one
But the subject is the great subject of the day
and is inexhaustihle. | have endeavored to sus
tain the following propositions.
l. That the two races of white and black in
the United States, must forever remain separate
and distinct. while they continue in the same land
whether all the blacks are free, or only por
ton Of them.
2. That the necessary consequence of this state
of things as illustrated BY the present. and in &C
cordance with all history, must be that the weak
er of the two races must, directly or indirectly,
be oppressed, the extent OF the oppression beng
in proportion to the OCCASIONS OF COLLISION be-
tween the two in competition for employment.
3. That another necessary consequence OF this
state of things is, that the two races must separ
ate-in this as in all similar cases-o-, in other
words, there must be Colonization, to be car
ried on like all other previous Coloniz aticns,-
which NAV be facilitated by aid in the COM
mencement, but which must ultimately be a self
paving Colonzaton-the emi grants paying their
own expenses.
4. That existing circumstances already press
| upon the free colored man the necessity of emf
grafton and that he is beginning to appreciate its
| importance. That these circumstances. growing
mainly ont Of the vast increase of white pop
| ulatioa, by native birth and foreign emigration,
are accommodating beyond all control, and will Ill
timately leave the free colored man no alternative
| but emigration.
| 5. That Africa is the place for which he is
destined, and that the Colonies planted there,
now the Republic of Liberia, are TO be hi. ulti-
mate home. That in Africa alone can he escape
the white mans power, while the latter will be
dependent upon him for the missionary and COM
mercial agencies above referred to.
g. That, while the present means for cmigra-
ton may be supplied BY individual, or other aid,
vet the commerce which is rapidly growing up
| between Africa and'this country, will, in brief
| time--looking to the ends TO be o5tained-fur-
nish facilities for the same emigration from Amer
lea to Africa that is now taking place between
/ Europe and this contnent.-an emigration which
would soon relieve the United States from its en-
tire free colored population---and towards which,
where the Irishman or German has one motive,
the free black man has ten.
! In TINS complying, at scgreat a length with
the request Of Mr. Coleman and yourself, have
been. very probably, far more diifuse than was
necessary. My prolixity must be taken as an
evidence Of desire TO crafty your wishes, on
the part of Dear Sir,
Yours very truly and respectfully.