Tarboro' Press (Tarborough,

From the Union.
The Sierra Madre Expedition.-
The whig journals continue to discuss the alleged Sierra Madre movement; & the National Intelligencer of yesterday publishes a statement that a large number of wagons, said to have been used by our army in Mexico, have been purchased for the expedition.
We deem it proper, therefore, to reiterate our former statements, that the government is fully resolved to exert its legal authority. to execute in good faith the treaty with Mexico, to preserve the peace between the two countries, and to repress any movement whatever in our country, of an illegal character, tending to disturb our peaceful relations with Mexico, or to violate our position of strict neutrality and non-interference between the Mexican government and any disaffection existing in the northern Mexican provinces. Considering the many rumors now in circulation of such a contemplated movement, our government has already taken efficient measures of precaution, in the shape of proper instructions both to our civil and military authorities on the frontier, to effect these objects, and to cause our neutrality laws to be faithfully enforced; & neither vigilance nor energy will be wanting by our government to see that these instructions are effectually carried out.