The New York herald., 1851-09-30

American Isthnus, from the Tehuantepse route in
Mexico, to the Atrsto route in South America, the
command Of the Straits Of the Caribbean Sea and
ofthe Gulf Of Mexico becomes obj .ct of the frst
magnitude. The possession Of The island Of Cuba
by the United States would accomplish this ohjec.
completely. This country would have the undoubt-
edpowe-, in holding the island, to open or shut up
the Gulf AT its pleasure. Hence the policy Of Eng
land in preserving to Spain the sovereignty over
Cnba-a power iather under the protection Of Eng
land than otherwise, and too feeble, in any event.
20 close up the inlet and outlet OF tie Gulf. Lord
PalmeIston, doubtless, would no. object TO the
transfer of Cuba, body and breeches, to her Britain
nic Majesty; but the disapproval Of Brother Jons-
than is sufficiently understood 20 be respected in
the outset, upon that point.
OF the exact sipulitons Of this reputed treaty of
joint protection against the United States we are
not advised. We presume there was something
almost official in the private note published in the
NatlCnal inttRlgmc1, few days ago, in which it
was stated that the gradual abolition of slavery is
one of the local reforms proposed for the benefit Of
Cuba-that the Island is to have local legislative
goverIment-and is to be represented by delega-
tion in the supreme Cortes at Madrid. There may
be other reforms in the plan proposed Of CON-
mercial character, and others in mitigation of
the taxes and licenses imposed upon the
Inhabitants. In the main, these ameliorations
coincide with the representations made through this
Journal by Mr.. Bennett, sfter winters residence
at Havara. Indeed, the late events in the island,
as well as the alleged negotiations in Europe, con-
firm the correctness Of his observations. He re-
Ieatedly declared that there was 10 apparen. wan.
of loyalty 70 their government among the creolss of
CubS--tbat General Concha, on the other hand,
was popular, from he reforms which be had intro
drccd, ard frtm the larger commercial facilities
which embraced in his policy for the future
administration of the colony; and that such being
the ecordition Of things, any foray from
our shores would inevitably fail. History has
solved mos. fearfuly al the late existing doubts as
to the correctness Of these opinions.
OF the particular mission Of the French frieate
ard ofthe nature of the dispatches which, it is said
she viii b.pg to Washington, we ave yet to be 10
formed. OF one thing, however, We spprehend the
triple alliance may rest assured-that the United
States government cannot become party tc their
arrangements, if they are TO preclude this govern
ner., as condition of the programme, from that
policy which may be most advantageous to itself as
Circumstances may transpiIe. Nor do we suppose
that the cabinet at Washing ton will 20 be.
ecne party 10 this triple alliance, whatever may
be It's condition, with the right to the acqus;.
tion of Cuba by purchase, distinctly conceded. We
are rIon the eve Of Pres aential election; and IN
der all the circumstance, it il juncture most IT,
favorable TO the triple alliance, fraught With danger
Il persist ed in, not only TO the island Of cuba, but
10 Cur pacis, relations wish all concerned. We
repeat, tha: the only security OF Spain is the integ
rity Of the American g government.