Drawing, Upper Aletsch Glacier with the Great Fusshorn

Horizontal study of the Aletsch Glacier across two sheets of paper (-a & -b). The sheet shows roughly one third of the view. The glacier is in the foreground against a backdrop of mountain slopes. Notations throughout, including: Trees; clear / stones in streaks; dirty but light / tolerably / smooth; clear; dirt; grey [?]. Verso: Small sketch with a mound in the rear, inscribed: Great glacier bed / light grey; Ice [?] dirty.