The Effect of nitrilotriacetic acid (NTA) on the structure and functioning of aquatic communities in streams /

"July 1980."

Adventures in Australia : the wanderings of Captain Spencer in the bush and the wilds, containing accurate descriptions of the habits of the natives and the natural productions and features of the country /

Mode of access: Internet.

Catalog of the types of recent mollusca of the Academy of Natural Sciences of Philadelphia /

Cover title.

Employment opportunities in teaching and educational administration as reported to the office of treacher placement.

Mode of access: Internet.

Estimated natural streamflow in the Rio San Jose upstream from the Pueblos of Acoma and Laguna, New Mexico /

Mode of access: Internet.

Mathematics, compiled from the best authors, and intended to be the text-book of the course of private lectures on these sciences in the university at Cambridge.

Part of: Theodore P. Hill collection of early American mathematics books.

Proceedings of the Academy of Natural Sciences of Philadelphia

"Publications of the Academy of Natural Sciences of Philadelphia": v. 53, 1901, p. 788-794

Journal of the Academy of Natural Sciences of Philadelphia.

Microform.

List of papers published in the Bulletin and Memoirs of the American Museum of Natural History, volumes I-XVI, 1881-1902.

Mode of access: Internet.

Bulletin of the Buffalo Society of Natural Sciences.

GeoRef

Scientific dialogues : intended for the instruction and entertainment of young people : in which the first principles of natural and experimental philosophy are fully explained /

"Lydia R. Bailey, printer."

An account of travels into the interior of southern Africa, in the years 1797 and 1798 : including cursory observations on the geology and geography of the southern part of that continent ; the natural history of such objects as occurred in the animal, vegetable, and mineral kingdoms ; and sketches of the physical and moral characters of the various tribes of inhabitants surrounding the settlement of the Cape of Good Hope. To which is annexed, a description of the present state, population, and produce of that extensive colony ; with a map constructed entirely from actual observations made in the course of the travels.

Vol. 2 has title: An account of travels into the interior of Southern Africa; in which is considered, the importance of the Cape of Good Hope to the different European powers, as a naval and military station ; as a territorial acquisition and commercial emporium in time of peace : with a statistical sketch of the whole colony ; comp. from authentic documents.