SAN JUAN ISLAND INVADED BY AMERICAN TROOPS.Wo learn that a company of U, S. soldiers under coinmaml of Cupt. Pickott, wore expected to land at San Juan Island yostor-day, from Soniiahnioo, in order to oroct barracks and fortijlcations. They wore ordered there by Cion. Ilarncy, when up hero a short time ago, We trust our government will call our insatiable neighbor, to account for the unwarrantable assumption. Tho first thing that will follow will, ho duties and taxes imposed by the United, Statos aad Washington Territory, on British j subjects, who may reside there, and serious, disputes may grow out of it. When the title of the island is definitely settled in their favor, thou it will bo time to allow| Americans to quietly garrison the island, j and not before. It is desirable that the question of sovereignty should he speedily settled; but wo hope that in tlie final settlement, Imperial politicians will not show such a disregard for Br»t»Vn American interests as' exhibited in the settlement of tho north-eastern and north-western hound, aries,—by which New Brunswick lost millions of acres of land, and this side, all ■Washington Territory and Oregon to the Columbia Kiver,