Mid-Century Edition] in one volume, nevertheless, this work contains greater detail, as well as considerable additional material, with no loss of scale, this being achieved by printing on both sides of the paper, using narrower margins, and including a single index. Some revisions and improvements were made; endpaper keys show which parts of the world are covered by which plates; an international glossary gives the English equivalents of common name-words. Some discoveries by satellite surveys were included." Fourth generation The 10th or "Millennium" edition (1999) of the 1967 Comprehensive Edition is in effect the first representative of the fourth generation. In contrast to its predecessors, it is completely produced by means of computer-cartography: The Times Comprehensive Atlas of the World, published by Times Books in London (124 leaves of maps). Contents are slightly different in scale, or in arrangement. 10th edition (1999) According to the publisher, this “was the first entirely new edition of the atlas since the Mid-Century Edition and also the first to be produced from digital data.” 11th edition (2003) This edition was also offered, bound in half-leather, by the Folio Society. 12th edition (2007) Changes to previous editions include "an estimated 20,000 mapping updates including 3,500 changes to names, a brand new map of Alaska and NW Canada, abandoned settlements featured for the first time, new satellite images of the continents, revision of all national and socio-economic statistics and new coverage on Biodiversity and the Environment ... The division of Serbia and Montenegro into separate countries. The new national capital of Myanmar called Nay Pyi Taw, a joint capital with Yangon (Rangoon). Secession of St-Barthelemy and St-Martin from Guadeloupe. New World Heritage Sites. Opening of the 1118 km Golmud to Lhasa railway in China, the highest railway in the world. Opening of the 32.5 km cross sea Donghai bridge, in China, linking Shanghai to the deepwater port on Xiaoyang Shan island." A Luxury Edition was also offered from 2008, bound by Book Works Studio in London. 13th edition (2011) The map of Greenland depicted 15% less ice cover than in the 1999 edition. A number of glaciologists and climate scientists contested the claim. Researchers from the Scott Polar Research Institute wrote: "A sizable portion of the area mapped as ice-free in the Atlas is clearly still ice-covered. There is to our knowledge no support for this claim in the published scientific literature. It's a really bad