Further up, in dim perspective, we saw ships with enormous yellow-painted hulls; noble ships they were, with names allied to England's naval glory.  They were all, however, far younger than the Saint Vincent, as we discovered by seeing the apertures in their stern-posts formed to admit screws.  Some fought in the Black Sea, others in the Baltic; but papa said "that their fighting days are now done, though they are kept to be employed in a more peaceful manner, either as hospital ships or training-schools."