THE ROSES of which we have hitherto spoken have but one period of bloom in the year. June is gay with their flowers; but at midsummer their glory is departed, not again to return till a winter of rest has intervened. Various families of roses have, however, the faculty of continuous or repeated blooming. Some remain in bloom with little interruption for a long time; while others bloom at intervals, after periods of rest. These classes are known, with little discrimination, as "Autumnal Roses," "Ever-blooming Roses," or "Perpetual Roses." The French have a name for those blooming at intervals, which is very appropriate. They call them "Remontant Roses,"—Rosiers Remontants,—in other words, roses which grow again. Thi............