Lie, Sophus 1842-1899 Vorlesungen über continuierliche Gruppen: Mit geometrischen und anderen Anwendungen

PYLIHAEV, MIKHAIL IVANOVICH 1842-1899 ZABYTOE PROSHLOE OKRESTNOSTEL PETERBURGA

Coues, Elliott 1842-1899 Key to North American Birds [microform]: Containing a Concise Account of Every Species of Living and Fossil Bird at Present Known From the Continent North of the Mexican and United States Boundary

Coues, Elliott 1842-1899 The Fur-bearing Animals of North America [microform]: a Monograph of American Mustelidæ, in Which an Account of the Wolverine, the Martens or Sables, ... Several Species of Skunks, the Badger, The...

Lie, Sophus 1842-1899 Theorie der transformationsgruppen; Band 1

Coues, Elliott 1842-1899 A Checklist of North American Birds [microform]

Coues, Elliott 1842-1899 Field Ornithology [microform]: Comprising a Manual of Instruction for Procuring, Preparing and Preserving Birds and a Check List of North American Birds

Coues, Elliott 1842-1899 On the Trail of a Spanish Pioneer; the Diary and Itinerary of Francisco Garcés (missionary Priest) in His Travels Through Sonora, Arizona, and ... Copy of the Original Spanish Manuscript,...;