...rly by the side of the Union, because, he says, if slavery be extended in America, it must be restored in the West Indies.--If any one doubts the force of this demonstration, we are sorry for it, for Mr. Clay has no other to offer. Our examiner next asks us to consider our interests. Clearly, he says, it is to stand by the Union, because they are our best customers, and because, though they have done ...