The republic., 1851-07-10
From the NeO orIsan. pieay,.ne, J,llg /.

Return OF the Tehuantepec Expedition.
The schooner p. M. Sears, Captain Graham,
rived on Sunday morning from Mnatitlan, having
on board the following members of the Tehuante-
pee Surveying Commission: j. j. Williams, prin-
cipal assistant engineer; j. g. Avery, first assist
ant engineer; J. Mel. MurphyrU S. N, hydro
graphic era assistant; w. L. Miller, c. c. smith, J.
NJ Mercer, Jos. II Bradley, jr., j. Johns. VIM. A.
Coburn, and l.. NJ. Davidson, assistant engineers;
also, M. Muller, draughtsman, and II. G. James
and Geo. Evans, together with number OF axe
men and employees of the company.
By the arrival Of this vessel, we learn from one
of the gentlemen the following items OF news:
Major Barnard was still at FL Barrio, waiting the
arrival of Mr.. Sidel, with whom, as associate en-
gineer, he 10 visit the several passes and PROM
lnent points previous to returning. MIR. j. Is. r.
Dayidge' with small party, was left to make re-
connolssances and run line OF levels from the
confluence Of the streams entering on the west
bank OF the Coatzacoalcos, back to the expert
mental line. Mr.. VIM. Is. Williams and party Of
four were also left to run a line through from the
Jumuapa to the Chivea Pass, with a view to the
construction OF a carriage road. All the essential
surveys, at least those which go TO show the entire
practcabty of the route, are now complete. Mr..
Murphy had surveyed seventy miles of the %--an-
apa 'discovered extensive iron and coal mines and
demonstrated the feasibility Of route the east
side, as favorable, If not more 30. than the one
already rum In the same connexion, Mr. J. j.
Williams, who lately returned from series OF re-
connossances in the Cordlleras, found no less than
sir passes, all of which admitted of grade oil not
more than sixty feet; and what is equally import
ply of the summit level of ship canal, although
not at the points suggested by Moro.
Indeed, the fund of information brought by this
party, as far we can learn, Is far greater than
the most sanguine friends OF the enterprise had any
reason TO expect.
series OF revolutions had broken out at several
points on the Isthmus, owing doubtless to the re-
lection of the Tehuantepec treaty and the attitude
assumed by the Mexican government. AtMolao-
can and at Juchtan several arrests had been made,
and troops were drafted from Acayucan on the
north, and Oajaca on the south, TO suppress these
manifestations of preference for the Americans,
and the project which promises to exercise such an
important influence upon the future destinies OF
the Isthmus. How these things are likely TO end
there be telling; but certain it is 1t cannot
fail 10 show the spirit of the people, and must BEN
eft the interests of the enterprise, and eventually
closed
From the same we learn the following
further particulars in relation TO the schooner
Helen Mar, previously alluded to in this paper:
On the Sth ultmo, Immediately after the depar-
ture of the United States revenue cutter Duane,
the commandant at Mnatitlan produced order
from the Governor at Vera Cruz, to send the Helen
Mar and her to that place, as prize. To
this Captain Selkirk objected, until complete in
ventory Of his vessel, her tackle, stores, and APP
pointments, had been rendered him by the captain
of the port. This being done, he refused to pro-
ceed in the schooner, bat at the time yielded
her up to the officials clothed with little brief
authority and, no longer intimidated by the
presence of the Duane, the comrnandant ordered
u guard OF 5Oluler5 10 force the captain and crew
on board. To this outrageous command Cap
tain Selkirk replied, that he would perish rather
than be driven like dog at the point of
Mexican bayonet. Things now began to assume
serious attitude But fortunately the survey
ing parties began to concentrate at Minatitlap,
and learning the state of affairs, determined
not to stand as idle witnesses to any such
as that which the valiant commandant proposed
to enact. Indeed, by nightfall, preparations were
made in good sober seriousness to resist. Inte-
gence of this determination conveyed to the
military, who wisely concluded that discretion was
the better part ofvalor, and backed out. Mr.. Muir
ply, of the surveying expedition, waited upon the
commandant, and suggested the release of the
captain and crew, with proper passports, at the
same time telling him of the necessity for his inn
mediate compliance The next morning this
done, and Capt. Selkirk left for Vera Cruz, where
the matter will be submitted to trial. Indeed,
throughout the whole affair, gro wing it doubt
less did out of the rejection of the treaty, the
Mexican government has behaved with its
toned hostility to every thing American. When
it is considered that the Helen Mar cleared with all
proper and necessary papers from Vera Cruz, and
that her entrance to the Coatzacoalcos in strict
accordance with the acknowledged revenue laws
of Mexico, the seems to call for the imme-
diate action of the State Department at Wash
ington.
We notice many robust and rosy faces among the
returning members. which ap1aks we'll for the
health of the lsthmus.