The common horny looking covering which we notice on old spectacle case and surgical instrument cases, of a green colo is of this material. It is prepared from the hose or ass skin, its granular appearance being given it by imbedding seeds in it while soft, and the shaving down the surface ; the. green used is that produced by the action of sal ammoniac on copper filings. The name is derived from a species of whale, shagree, from whose skin it was formerly supposed to be made, when the manufacture was confined to Astracan.