Proc. Wash. Acad. Sci. Vol. VI 



PLATE XXVIII. 



Fig. I. The second dam crosses Slate River from below. The house shows indistinctly near the 



center of the picture. 



Fig. 2. \'er\ wide mud and stick dam ucioss .slouj^h. 



/>/!.. (.)s /■:. K. w. 



