books, the supper will not be needed, and will prove, if taken, only a burden; but if, as has already been said, it be spent in actual brain-work, the tremendous and unusual strain on the whole nervous system, occasioned by the destruction of nerve-cells, must be made good, or those organs most intimately connected with the nervous system and the sources of life, will be sure to suffer. It must, however, be repeated here, if we would secure the good results desired, that the supper must be of _nourishing_, not of stimulating food. Even the destruction, through exercise, of the inferior muscle-cells demands food before sleeping. It is no merely fashionable custom which calls the dancers at an evening entertainment to the loaded supper-table, as those of my readers who have attended the so-called cold-water Sociables will bear me witness. It may be seriously questioned whether the regulation which forbade any refreshment except cold water was not, like many other unthinking, economical plans, really no economy at all. Instead of one pantry's furnishing food to the famished dancers, this was furnished for each one at home, from her own mother's private stores, and as the members of the Sociables met at each other's houses in order, the total result of expenditure to each family, at the close of the winter, was probably the same as it would have been, had each family furnished, on one evening, a moderate entertainment of the same sort to the bankrupt systems. Fashion is often wiser than we think her, especially when at parties for the "German" she prescribes a cup of beef-tea as the regulation refreshment.