ROSENKRANTZ, ALFRED. 1898-1974. Four manuscript notebooks, 96 pp, [Copenhagen], 1916, in Danish, with 11 mounted pen & ink illustrations and 5 original photographs. Rosenkrantz was one of the great explorers of Greenland and a distinguished geologist. The present notebooks date from his late teens as a student teacher at the Geological Museum of the University of Copenhagen; they cover the geology and natural history of glacial regions in Denmark.