- Search terms are case-insensitive
- Common words are ignored
- By default only entries containing all terms in the query are returned (i.e., AND is implied)
- Combine multiple words with OR to find articles containing either term; e.g., education OR research
- Use parentheses to create more complex queries; e.g., archive ((journal OR conference) NOT theses)
- Search for an exact phrase by putting it in quotes; e.g., "open access publishing"
- Exclude a word by prefixing it with - or NOT; e.g. online -politics or online NOT politics
- Use * in a term as a wildcard to match any sequence of characters; e.g., soci* morality would match documents containing "sociological" or "societal"
Entrance to Harbor, Buenos Aires, Argentina.
Beets Stored in Sheds at Beet Sugar Factory-Ontario, Can.
Quarrying Granite-Drilling Preparatory to Splitting, Concord, N.H.
Commotion in the Devil's Ink Pot, Yellowstone National Park, Wyo.
Alfalfa Hay and Loader on farm of W.J. Bryan, Lincoln, Nebraska.
Electric Generators, Power Plant, Keokuk, Iowa.
A Load of Logs at the Kettle River Landing, Minnesota.
Packing Salt in Barrels, St. Clair, Mich.
Shucking Oysters, Oyster House, Baltimore, Md.
Drying Codfish in the Sun, Gloucester, Mass.
Washington's Headquarters at Newburgh on the Hudson, N.Y.
Lauterbrunnen Valley and Water Fall, Switzerland.
Kangaroos in The Zoological Garden, Adelaide, Australia.
Gannets on Shore Near Cape Town, So. Africa.
Ivory Ready to Ship, Mombasa, Africa.
Caravan Leaving an Oasis in the Desert of Egypt.
Suez Canal, Egypt.
Tortilla Making, Salvador, C.A.
Rhine Valley at Bingen, Germany.
Blarney Castle, Ireland.
Ellen's Isle, Loch Katrine, Scotland.
New York City from the Brooklyn Side.
Juice from Maguey Plant Used in Making Pulque, Tacuba Mexico.
Commander Gerlache, Belgica Expedition (1897-99) Hunting Seals.
Quaint Scene in Streets of Barraquilia, Columbia, S. Amer.