SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE— SHERZF.R. 



PLATE XLI. 



Fig. I. — Stratification of Asiilkan CMacier. The dates are added upon ilie sup- 

 position that the strata represent seasonal deposition. Copyrighted, 

 Ig02, by the Detroit Photographic Co. 



Fig. 2. — General view of Asulkan Glacier in iSgS. Reproduced through courtesy of the Messrs. Vaux. Compare with plate .xx.xix, 



figure "l. 



