T«s Richmond Mrmcai. JoraxAT..—We have »„foro us the ilrst number of this Journal, the prospectus for which* appeared some time subCS in the papers of Richmond. It ia edited \,\ Die. E. S. Gaillard and W. S. McChesney, of this city. A hasty glance at this number ahoWi that it is one of the most promising medical periodicals ever established in this