ALEXANDER AGASSIZ (1835-1910) Zoologist and industrialist, son of Jean Louis, built the largest mining company in the world (Calumet Mining Co.). D.S. 2pp. folio, Cambridge, 1873, his approval as board member of a statement of annual income issued by the Museum of Comparative Zoology, signed on verso. Split at top and archivally repaired on verso, not affecting endorsement. $75-100