ectures by Agassiz, 776.
Nageli, 30.
Nahant, laboratory at, 548, 678, 581, 647, 674.
National Academy of Sciences founded, 569.
Negroes, 500, 504, 591, 594, 600, 605, 612.
Neuchatel, plans for, 190, 193, 199; accepts profesorship there, 202; first lecture, 206; founding of Natural History Society, 208, 215; museum, 208.
New Haven, 408, 409, 413.
New York, city of, 415, 425.
New York, Natural History of, 427.
Nicolet, C., 300.
Nomenclator Zoologicus, 334, 356.
Nuremberg, 73; the Durer festival, 73.
Oesars, 448.
Oesterreicher, 91.
Oken, 44, 53, 54, 91, 102, 151, 643.
Orbe, 118, 666.
Ord, collection, 419.
Osono, 748.
Otway Bay, 741.
Owen's Island, 742.
P.
Packard, A. S., 773.
Panama, 764.
Paris, Agassiz in, 162, 163, 165, 170, 175, 195.
Peale, R., Museum, 419.
Peirce, B., 438, 458.
Penikese Island, 767; glacial marks, 774.
Perty, 90.
Philadelphia, 416, 423; Academy of Science, 416; American Philosophical Society,