The horrors of [Vivisection] have supplanted the solemnity, the thrilling fascination, of the old unetherized operation upon the human sufferer. Their recorded phenomena, stored away by the physiological inquisitor on dusty shelves, are mostly of as little present use to man as the knowledge of a new comet or of a tungstate of zirconium: perhaps to be confuted the next year, perhaps to remain as fixed truth of immediate value, - contemptibly small compared with the price paid for it in agony and torture.