SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE— SHERZER. 



PLATE XL. 



Fig. I, — Left Asulkaii moraine shedding its rocivy covering and exposing the ice core. 



Fig. 2. — Debn^-tuieie I ui'^ir 111 .\^^cll^.ul Glacier, August, 1904. Glacier had been advancing for some three or four 



years. 



