Subsequently, however, a rather different container does wash ashore in "The Mysterious Island", bearing tools, firearms, navigational instruments, an atlas, books, blank paper, and even clothing. They are found in a crate lashed to empty barrels, its contents sealed in a waterproof zinc envelope and showing careful preparation, and packing. Throughout the same book, Nemo repeatedly acts in this providential way, as when the sailor Pencroff pines for tobacco, then the young naturalist Harbert identifies some of the island's plant life.