Topical subject terms, geographical place names, occupations, and forms of material represented in finding aids. Subjects are selected from controlled lists of words and phrases used by the Library of Congress.
L
- Labels--1830-1900.
- Labor.
- Labor activists.
- Labor and laboring classes--Law and legislation.
- Labor arbitrators.
- Labor attachés--Belgium.
- Labor attachés--Greece.
- Labor attachés--Mexico.
- Labor disputes.
- Labor disputes--California.
- Labor disputes--Connecticut.
- Labor disputes--Pennsylvania.
- Labor disputes--United States.
- Labor--Great Britain.
- Labor--Japan.
- Labor laws and legislation.
- Labor laws and legislation--Cases--United States.
- Labor laws and legislation--Cuba.
- Labor laws and legislation--United States.
- Labor leaders.
- Labor leaders--United States--Caricatures and cartoons.
- Labor movement.
- Labor movement--Africa.
- Labor movement--Canada.
- Labor movement--Chile.
- Labor movement--Kenya.
- Labor movement--Pennsylvania.
- Labor movement--United States.
- Labor--New Jersey--Paterson.
- Labor policy--United States.
- Labor union meetings--United States--Planning.
- Labor unions.
- Labor unions and mass media--United States.
- Labor unions, Black--United States.
- Labor unions--California.
- Labor unions--Elections.
- Labor unions--Europe.
- Labor unions--Great Britain.
- Labor unions--Guatemala.
- Labor unions--Illinois--Chicago.
- Labor unions--Moral and ethical aspects--United States.
- Labor unions--New Jersey--Paterson.
- Labor unions--North Carolina.
- Labor unions--Organizing--United States.
- Labor unions--Pennsylvania.
- Labor unions--Political activity--United States.
- Labor unions--Public relations--United States.
- Labor unions--United States.
- Labor unions--United States--By-laws.
- Labor--United States.
- Laborers.
- Laity--Catholic Church.
- Laity--Protestant churches.
- Lake Erie, Battle of, 1813.
- Lakes--New York (State).
- Lanao Moro dialect.
- Lancaster County (Pa.).
- Land agents.
- Land companies--Ohio.
- Land companies--Pennsylvania--Philadelphia.
- Land companies--West Virginia.
- Land grants--Alabama.
- Land grants--Florida.
- Land grants--Kentucky.
- Land grants--Liberia.
- Land grants--Louisiana.
- Land grants--Mississippi.
- Land grants--New York (State).
- Land grants--Russia.
- Land grants--Virginia.
- Land grants--Virginia--Westmoreland County.
- Land grants--West (U.S.).
- Land reform--Poland.
- Land speculation.
- Land speculation--Illinois.
- Land speculation--Kentucky.
- Land speculation--Michigan.
- Land speculation--New Jersey.
- Land speculation--New York (State).
- Land speculation--Ohio.
- Land speculation--Ohio--Marietta.
- Land speculation--Ohio--Western Reserve.
- Land speculation--United States.
- Land speculation--Virginia.
- Land speculation--Wisconsin.
- Land speculators.
- Land tenure--Alabama.
- Land tenure--California.
- Land tenure--Florida.
- Land tenure--France.
- Land tenure--Kentucky.
- Land tenure--Louisiana.
- Land tenure--Mississippi.
- Land tenure--New York (State).
- Land tenure--Ohio.
- Land tenure--Southern States.
- Land tenure--Virginia--Bedford County.
- Land tenure--West (U.S.).
- Land use.
- Land use, Rural--West Virginia.
- Land use--United States.
- Landlord and tenant--France.
- Landowners.
- Landowners--Ohio.
- Landowners--Texas--Fort Bend County--Maps.
- Landscape architects.
- Landscape architecture.
- Landscape architecture--Connecticut--Hartford.
- Landscape architecture--Maryland--Baltimore.
- Landscape architecture--New York (State)--Buffalo.
- Landscape architecture--New York (State)--New York.
- Landscape architecture--Niagara Falls (N.Y. and Ont.).
- Landscape architecture--Washington (D.C.).
- Landscape prints--1830-1880.
- Landscape protection.
- Language and languages.
- Language and languages--Study and teaching.
- Lantern slides.
- Lantern slides--1880-1940.
- Laos--Armed forces.
- Laos--Foreign relations--Soviet Union.
- Laos--Foreign relations--United States.
- Laos--Foreign relations--Vietnam (Democratic Republic).
- Laos--Foreign relations--Vietnam (Republic).
- Laos--History.
- Laos--Politics and government.
- Laotian Americans--Music.
- Lasers.
- Latin America.
- Latin America--Commerce--United States.
- Latin America--Description and travel.
- Latin America--Discovery and exploration.
- Latin America--Foreign relations--United States.
- Latin America--History.
- Latin America--History, Military.
- Launch vehicles (Astronautics).
- Law.
- Law and economics.
- Law--Cases.
- Law--Cases--United States.
- Law clerks.
- Law--Codification.
- Law enforcement.
- Law firms--Washington (D.C.).
- Law--Florida.
- Law--Germany.
- Law--History.
- Law--Illinois.
- Law--Louisiana--Cases.
- Law--Maryland.
- Law--Maryland--Baltimore.
- Law--Methodology.
- Law--New York (State).
- Law of the sea--United States.
- Law--Ohio.
- Law--Pennsylvania--Philadelphia.
- Law--Philosophy.
- Law reporters.
- Law reporters--United States.
- Law schools--Massachusetts--Cambridge.
- Law schools--New York (State)--New York.
- Law schools--Washington (D.C.).
- Law--Societies, etc.
- Law--Study and teaching.
- Law--Study and teaching--Africa.
- Law--Study and teaching--Asia.
- Law--Study and teaching--Curricula.
- Law--Study and teaching--Germany.
- Law--Study and teaching--Louisiana.
- Law--Study and teaching--Middle East.
- Law--Study and teaching--New York (State)--New York.
- Law--Study and teaching--United States.
- Law--United States.
- Law--United States--Cases.
- Law--United States--Territories and possessions.
- Law--Virginia.
- Law--Virginia--Richmond.
- Law--Wyoming.
- Lawnside (N.J.)--History.
- Lawyers.
- Lawyers--Interviews.
- Lawyers--Kentucky.
- Lawyers--United States.
- Lay analysts.
- Lear, King (Legendary character)--Drama.
- Learned institutions and societies.
- Lebanon--Description and travel.
- Lebanon--Foreign relations--United States.
- Lebanon--History--1975-.
- Lebanon--Hostages.
- Lebanon--Politics and government--1946-1975.
- Lecture notes.
- Lecturers.
- Lectures.
- Lectures--1930-1940.
- Lectures and lecturing.
- Legal assistance to Indians.
- Legal correspondence.
- Legal documents.
- Legal documents--Switzerland.
- Legal instruments--England.
- Legends.
- Legislation.
- Legislative bills.
- Legislative bodies--Confederate States of America.
- Legislative bodies--Rhode Island.
- Legislative materials.
- Legislative oversight--United States.
- Legislative power--United States.
- Legislators--California.
- Legislators--Connecticut.
- Legislators--Louisiana.
- Legislators--Lower Canada.
- Legislators--Massachusetts.
- Legislators--New Hampshire.
- Legislators--New York (State).
- Legislators--Ohio.
- Legislators--Pennsylvania.
- Legislators--Russia (Federation).
- Legislators--South Carolina.
- Legislators--Tennessee.
- Legislators--Texas.
- Legislators--United States--Autographs.
- Legislators--United States--Correspondence.
- Legislators--Vermont.
- Legislators--Virginia.
- Leisure.
- Lend-lease operations (1941-1945).
- Leonardtown (Md.)--Commerce.
- Lesbianism.
- Lesbians--Legal status, laws, etc.--United States.
- Lesbians--United States.
- Letter writing--United States.
- Letters (Correspondence).
- Levees--Virginia--Mount Vernon.
- Lewis Cass Expedition, 1820.
- Lexicography.
- Leyte Island (Philippines)--History.
- Libel and slander.
- Libel and slander--United States.
- Liberalism.
- Liberalism--United States.
- Liberia--Colonization.
- Liberian poetry (English).
- Librarians.
- Librarians of Congress.
- Libraries.
- Libraries--Canada.
- Libraries--France--Paris.
- Libraries--Maryland--Baltimore.
- Libraries--Massachusetts--Boston.
- Libraries--Minnesota--Saint Paul.
- Libraries--New York (State)--Geneseo--Endowments.
- Libraries--New York (State)--New York.
- Libraries--Societies, etc.
- Libraries--Special collections--Rare books.
- Libraries--United States.
- Libraries--United States--Societies, etc.
- Libraries--Virginia--Independence.
- Libraries--Washington (D.C.).
- Library buildings--Washington (D.C.).
- Library catalogs.
- Librettists--United States--Biography.
- Libya--Foreign relations--United States.
- Libya--History--1969-.
- Lighthouses--Great Lakes (North America).
- Limericks.
- Lincoln-Douglas Debates, Ill., 1858.
- Lincoln Memorial (Washington, D.C.).
- Lindy (Dance).
- Lindy (Dance)--Washington (D.C.).
- Linen industry--Ireland.
- Lingayen (Philippines)--History.
- Linguistics.
- Linguistics--Central America.
- Linguistics--China.
- Linguistics--Mexico.
- Linguistics--Mongolia.
- Linguistics--South America.
- Linguistics--Study and teaching.
- Linguistics--United States.
- Linguists.
- Linocuts.
- Linotype.
- Liquor industry--United States.
- Liquor laws--United States.
- Literacy--United States.
- Literary agents.
- Literary agents--Soviet Union.
- Literary agents--United States.
- Literary prizes.
- Literature.
- Literature--20th century.
- Literature and society--United States.
- Literature, Experimental--United States.
- Literature--History and criticism.
- Literature--History and criticism--Congresses.
- Literature--Periodicals.
- Literature--Societies, etc.
- Literature--Study and teaching.
- Literature--Study and teaching--China.
- Literature--Study and teaching--India.
- Literature--Study and teaching--United States.
- Literature--Translations.
- Lithographs--1830-1900.
- Lithographs--1830-1970.
- Lithographs--1840-1890.
- Lithographs--American--1830-1880.
- Little Bighorn, Battle of the, Mont., 1876.
- Little Compton (R.I. : Town)--History.
- Loans.
- Loans, Foreign.
- Lobbying.
- Lobbying--United States.
- Lobbyists.
- Local elections--New York (State)--New York.
- Local history--United States.
- Local transit--Fares--Washington (D.C.).
- Locusts--Middle East.
- Log cabin quilts--United States.
- Logansport (Ind.)--Social life and customs.
- Logbooks.
- Logbooks--United States--19th century.
- Loggers--United States--Songs and music.
- Logic.
- Logic, Symbolic and mathematical.
- Logistics, Naval.
- Logos (Symbols)--Design.
- London (England)--Commerce.
- London (England)--Description and travel.
- London (England)--History--Bombardment, 1940-1945.
- London (England)--Social life and customs.
- London (England)--Social life and customs--17th century.
- London (England)--Social life and customs--19th century.
- Long, Doc (Fictitious character).
- Long Island (N.Y.)--Social life and customs.
- Longitude.
- Loran.
- Lotteries.
- Lotteries--Louisiana.
- Lotteries--United States.
- Louisiana--Commerce.
- Louisiana--Description and travel.
- Louisiana--History.
- Louisiana--History--Civil War, 1861-1865.
- Louisiana--History--Civil War, 1861-1865--Blockades.
- Louisiana--History--Civil War, 1861-1865--Campaigns.
- Louisiana--History--War of 1812.
- Louisiana--Maps, Manuscript.
- Louisiana--New Orleans--Description and travel.
- Louisiana--Politics and government.
- Louisiana--Politics and government--1865-1950.
- Louisiana--Politics and government--19th century.
- Louisiana Purchase.
- Louisiana--Social conditions.
- Louisiana--Surveys.
- Love.
- Love--1830-1880.
- Love--1840-1890.
- Love Canal Chemical Waste Landfill (Niagara Falls, N.Y.).
- Love songs--United States.
- Low temperature engineering.
- Lower Canada--Politics and government.
- Lower Marlboro (Md.)--Commerce.
- Lowville (N.Y.)--History.
- Loyalty.
- Loyalty oaths.
- Loyalty-security program, 1947-.
- Lü language--China--Xishuangbanna Daizu Zizhizhou.
- Lumber trade--Martinique.
- Lumber trade--New York (State).
- Lutheran Church--New York (State)--New York.
- Luxembourg--Foreign relations--United States.
- Luzon (Philippines)--Description and travel.
- Luzon (Philippines)--Discovery and exploration.
- Luzon (Philippines)--History.
- Luzon (Philippines)--Social life and customs.
- Lynching.
- Lynching--Law and legislation--United States.
- Lynching--Pennsylvania--Coatesville.
- Lynching--United States.
- Lyric poetry.
- Lyricists--United States.
- Lyricists--United States--Biography.
- Lyricists--United States--Correspondence.