No. II. The measles broke out and many died. The device in the copy is the same as that for 1801-’02, relating to the small-pox, except a very slight difference in the red blotches; and though Lone-Dog’s artistic skill might not have been sufficient to distinctly vary the appearance of the two patients, both diseases being eruptive, still it is one of the few serious defects in the chart that the sign for the two years is so nearly identical that, separated from the continuous record, there would be confusion between them. Treating the document as a mere _aide-de-mémoire_, no inconvenience would arise, it probably being well known that the small-pox epidemic preceded that of the measles; but such care is generally taken to make some, however minute, distinction between the characters, that possibly the figures on Lone-Dog’s robe show a more marked difference between the spots indicating the two eruptions than is reproduced in the copy. It is also to be noticed that the Indian diagnosis makes little distinction between small-pox and measles, so that no important pictographic variation could be expected. The head of this figure is clearly distinguished from that in 1801-’02. No. III. All the Dakotas had measles, very fatal. Battiste Good says: “Small-pox-used-them-up-again winter.” They at this time lived on the Little White River, about 20 miles above the Rosebud Agency. The character in Battiste Good’s chart is presented here in Figure 41, as a variant from those in the plates. [Illustration: FIG. 41.--Measles or small-pox.] Cloud-Shield says: Many died of the small-pox. White-Cow-Killer calls it “Little-small-pox winter.” In Mato Sapa’s drawing the head of the figure is distinguished from that of 1801-’02. 1819-’20.--No. I. Another trading store built. No. II. Another trading store was built; this time by Louis La Conte, at Fort Pierre, Dakota. His timber, as one of the Indians consulted specially mentioned, was rotten. No. III. Trading post built on the Missouri River above Farm Island (near Fort Pierre). Battiste Good says: “Chozé-built-a-house-of-rotten-wood winter.” White-Cow-Killer calls it: “Made-a-house-of-old-wood winter.” 1820-’21.--No. I. Large dirt lodge made by Two-Arrow. The projection at the top extends downward from the left, giving the impression of red and black cloth streamers. No. II. The trader, La Conte, gave Two-Arrow a war-dress for his bravery. So translated an interpreter, and the sign shows the two arrows as the warrior’s totem; likewise the gable of a house, which brings in the trader; also a long strip of black tipped with red streaming from the roof, which possibly may be the piece of parti-colored material out of which the dress was fashioned. This strip is not intended for sparks and smoke, as at first sight suggested, as the red would in that case be nearest the roof, instead of farthest from it.