Lahr, a town of Germany, in Baden, on the Schutter, 24 m. N. of Freiburg; pop. in 1871, 7,710. It has a gymnasium, a Protestant and a Catholic church, a female high school, an industrial and a commercial school, and manufactories of tobacco, leather, vinegar, and snuffboxes. A branch line connects the town with the Baden railway. Since 1800 the most popular almanac of Germany, Der Lahrer Hinkende Bote, has been published here; it reached in 1873 a circulation of over 800,000, more than 50,000 being among the Germans of America.
Lake (It. lacca), a pigment prepared from infusions of vegetable dyes or of cochineal, by causing the coloring matter to unite and form a precipitate with some earthy or metallic oxide. This is usually alumina, but the oxides of tin and zinc sometimes serve as the basis. A solution of alum is employed to furnish the alumina, and potash is commonly added to it - always if the infusions are acid. If the infusions are made with alkaline liquors, the alum solution may be added alone. A decoction of turmeric yields an orange lake; of cochineal, a brilliant red lake (see Carmine); of Brazil wood, also a red, made violet by excess of potash, and brownish by cream of tartar. Madder also gives a red lake. Persian or French berries produce yellow lakes; and green lakes may be obtained from these mixed with blue pigments. The varieties of blue pigments in use render it needless to prepare blue lakes.
Lake Balaton. (Ger. Plattensce), a large lake in S. W. Hungary, in the counties of Zala, Veszprem, and Somogy; length, from S. W. to N. E., about 47 m.; greatest breadth 9 m.; depth from 27 to 36 feet; area, about 450 sq. m. It is fed by the river Szala, and discharges its waters through the Sio, which falls into the Sarviz, an affluent of the Danube. The lake abounds in fish. The fogas, a kind of large perch, is found only in this lake; it frequently weighs 10 to 15 and sometimes 20 pounds. There is also a species of white fish resembling the herring, which appears in large shoals during the winter. Crabs, crayfish, tortoises, and mussels are found. Iron sand occurs on the shores, which exhibits under the microscope grains of garnet, ruby, topaz, amethyst, and other precious stones.
Lake Borgne, a body of water in the S. E. part of Louisiana. It is strictly the termination of that large arm of the Mexican gulf known as Mississippi sound, being connected with it by a strait crossed by a line of small islands, and faced on the east by Grand island. It is also connected with Lake Pontchartrain by the Rigolet pass. It has about the average depth of Lake Pontchartrain, and approaches within 15 m. of New Orleans. Its greatest extent from N. E. to S. W. is about 27 m. Lake Borgne forms a part of the eastern boundary of the Mississippi delta.