IT will be admitted generally that for the purpose of learning the art of dressing ?ies one hour's practical demonstration by an ex pert will be of more service than whole volumes of written directions. Nevertheless, the latter are, I think, of some use, and will at least serve the purpose of permanently recording certain points of manipulation to which attention may have been drawn in a practical demonstration and which are apt to escape the memory. Verbal precept, backed up though it may be by ocular demonstration, will, by itself.