Materials upon which pictographs are made 58 Natural objects 58 Bone 59 Living tree 59 Wood 59 Bark 59 Skins 60 Feathers 60 Gourds 60 Horse-hair 60 Shells, including wampum 60 Earth and sand 60 The human person 61 Paint on the human person 61 Tattooing 63 Tattoo marks of the Haida Indians 66 Tattooing in the Pacific Islands 73 Artificial objects 78 Mnemonic 79 The quipu of the Peruvians 79 Notched sticks 81 Order of songs 82 Traditions 84 Treaties 86 War 87 Time 88 The Dakota Winter Counts 89 The Corbusier Winter Counts 127 Notification 147 Notice of departure and direction 147 condition 152 Warning and guidance 155 Charts of geographic features 157 Claim or demand 159 Messages and communications 160 Record of expedition 164