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Britannica Book of the Year (1913, 1938-) The Britannica book of the war (1914) Britannica Home University (1920) Weedon's Modern Encyclopedia (1931) a non-Britannica publication that was bought out and repackaged by Britannica as Britannica Junior (1934) Great Books of the Western World (1952) Children's Britannica (1960) aimed at ages seven ...
Since its 1875 founding, P.F. Collier and Son gave customers the option to pay for books over time. [11] In-home encyclopedia purchasers typically paid for the books in small monthly payments over three years. In an era of heavy smoking, in the 1950s and 1960s, the cost of Collier's Encyclopedia was equivalent to the cost of a pack a cigarettes ...
Compounds containing Ga–Ga bonds are true gallium(II) compounds, such as GaS (which can be formulated as Ga 2 4+ (S 2−) 2) and the dioxan complex Ga 2 Cl 4 (C 4 H 8 O 2) 2. [1] There are also compounds of gallium with negative oxidation states, ranging from -5 to -1, most of these compounds being magnesium gallides (Mg x Ga y).
Papyrus Larousse Britannica: Πάπυρος - Λαρούς - Μπριτάννικα (1975–2004) Suda: historical encyclopedia of the ancient Mediterranean world (10th century) Greek Wikipedia (Ελληνική Βικιπαίδεια)
China on Tuesday banned exports to the United States of the critical minerals gallium, germanium and antimony that have widespread military applications, escalating trade tensions the day after ...
founded 2004, bought by Amazon.com 2011, offered free shipping for books to addresses worldwide: Closed in April 2023 Book People United Kingdom: Retail and online: was a discount bookseller based in Godalming, Surrey, United Kingdom. It also sold in workplaces and schools via a nationwide network of Book People Local distributors. (Bankrupt)
A & C Black is a British book publishing company, owned since 2002 by Bloomsbury Publishing. The company is noted for publishing Who's Who since 1849 and the Encyclopædia Britannica between 1827 and 1903. [1] [2] It offers a wide variety of books in fiction and nonfiction, and has published popular travel guides, novels, and science books.
Gallium does not occur as a free element in nature, but rather as gallium(III) compounds in trace amounts in zinc ores (such as sphalerite) and in bauxite. Elemental gallium is a liquid at temperatures greater than 29.76 °C (85.57 °F), and will melt in a person's hands at normal human body temperature of 37.0 °C (98.6 °F).