Biodiversity, sometimes simply understood as "diversity of species", is a specific quality of life on our planet, the dimensions and importance of which have just lately been fully realized. Today we know that "biological diversity is a global asset of incalculable value to present and future generations" (Kofi Annan). Biodiversity is spread unequally over the world: in fact, the main share of biological resources worldwide is harboured predominantly by the so-called developing countries in the tropics and sub tropics. Therefore, Biodiversity - A Challenge for Development Research and Policy was chosen as the title for an international conference which was held in Bonn in 1997 as one of the first major events organized by the then newly established North-South Centre for Development Research (ZEF) at Rheinische Friedrich-Wilhelms-Universitat Bonn (Germany). Since the ZEF, founded by the Senate of the University of Bonn in 1995, has played a central role in turning Bonn into a centre for international cooperation and North-South dialogue. The Centre is a product of the Bonn Berlin agreement of July 1994 which was adopted to offset the effects caused by the Parliament and much of the Government moving to Berlin. It fits in well with the double strategy to strengthen Bonn's position as an interna tional science arena and as an eminent place for development policy and the national and supranational agencies dealing with this issue.

When WILHELM RUHLAND developed his plan for an Encyclopedia of Plant Physiol ogy more than three decades ago, biology could still be conveniently subdivided into classical areas. Even within plant physiology, subdivisions were not too difficult to make, and general principles could be covered sufficiently in the two introductory volumes of the Encyclopedia on the physical and chemical basis of cell biology. But the situation changed rapidly even during the 12-year publication period of the Encyclopedia (1955-1967). The new molecular direction of genetics and structural research on biopolymers had an integrating effect on all other biological fields, including plant physiology, and it became increasingly difficult to keep previously distinct areas separated. RUHLAND'S overall plan included 18 volumes and about 22,000 pages. It covered the entire field of plant physiology, in most cases from the very beginning. But, as each volume appeared, it was clear that its content would soon be outdated.

Includes 45 case studies and essays under the topics: Earth watch; Health watch; A closer look at ...; Scientific inquiry; Links to everyday life.

"Unquestionably one of the great living European poets. She's accessible and deeply human and a joy--though it is a dark kind of joy--to read. . . . She is a poet to live with." —Robert Hass, The Washington Post Book World Wislawa Szymborska's poems are admired around the world, and her unsparing vision, tireless wit, and deep sense of humanity are cherished by countless readers. Unknown to most of them, however, Szymborska, winner of the Nobel Prize for Literature, also worked for several decades as a columnist, reviewing a wide variety of books under the unassuming title "Nonrequired Reading." As readers of her poems would expect, the short prose pieces collected here are anything but ordinary. Reflecting the author's own eclectic tastes and interests, the pretexts for these ruminations range from books on wallpapering, cooking, gardening, and yoga, to more lofty volumes on opera and world literature. Unpretentious yet incisive, these charming pieces are on a par with Szymborska's finest lyrics, tackling the same large and small questions with a wonderful curiosity.