In Chinese writing there are still traceable a number of pictographs. Most are now difficult to recognize. A mouth was originally written as a mouth-shaped hole and is now, for convenience of brushwork, squared; a child, originally a recognizable little mannikin, is now a hasty wriggle and a cross; the sun, originally a large circle with a dot in the centre, has been converted, for the sake of convenience of combination, into a crossed oblong, which is easier to make with a brush. By combining these pictographs, a second order of ideas is expressed. For example, the pictograph for mouth combined with pictograph for vapour expressed “words.”[132] [Illustration: _Specimens of American Indian picture-writing_ (_after Schoolcraft ..._)] No. 1, painted on a rock on the shore of Lake Superior, records an expedition across the lake, in which five canoes took part. The upright strokes in each indicate the number of the crew, and the bird represents a chief, “The Kingfisher.” The three circles (suns) under the arch (of heaven) indicate that the voyage lasted three days, and the tortoise, a symbol of land, denotes a safe arrival. No. 2 is a petition sent to the United States Congress by a group of Indian tribes, asking for fishing rights in certain small lakes. The tribes are represented by their totems, martens, bear, manfish, and catfish, led by the crane. Lines running from the heart and eye of each animal to the heart and eye of the crane denote that they are all of one mind; and a line runs from the eye of the crane to the lakes, shown in the crude little “map” in the lower left-hand corner. ]