Allgemeiner Katalog des Königlichen Landwirtschaftlichen Museums zu Berlin.

Mode of access: Internet.

Ausstellung von Werken französischer Kunst des XVIII. Jahrhunderts : Königliche Akademie der Künste Berlin, vom 26. Januar bis 6. März 1910.

Mode of access: Internet.

Enumeratio plantarum Horti Regii Botanici Berolinensis : continens descriptiones omnium vegetabilium in horto dicto cultorum /

From the library of the Leidner family with their stamp.

Hortus Magni Ducis Badenis Carlsruhanus.

Errata at end.

Filicum species in Horto regio botanico berolinensi cultae /

Stafleu and Cowan (2nd ed.)

Berlin's antike Bildwerke /

No more published.

Verzeichniss der doubletten des Zoologischen museums der Königl. universität zu Berlin,

Mode of access: Internet.

Die Vossische Buchhandlung in Berlin 1693-1903 : auf Grund urkundlichen Materials zusammengestellt und als Handschrift gedruckt.

Includes bibliographical references.

Thematischer Katalog der von Thulemeiers̓chen Musikaliensammlung in der Bibliothek des Joachimsthals̓chen Gymnasiums zu Berlin.

"Der ... Katalog ist im Jahre 1860 von einem R. Jacobs angefertigt. Die Verleger und andere Bemerkungen sind vom Unterzeichneten."--Pref. (signed Rob Eitner)

International wireless telegraphy : hearing before the Committee on Foreign Relations, United States Senate, Sixty-second Congress, on an International Wireless Telegraphy Convention, with service regulations annexed thereto, a supplementary agreement, and a final protocol, all signed at Berlin on November 3, 1906, by delegates of the United States and those of several other powers. February 21, 1912.

Mode of access: Internet.

Railway freight rates, inland waterways, and canals of Germany.

Supplementary reports by Robert P. Skinner, James L.A. Burrell, William Thomas Fee, George Eugene Eager, H.J. Dunlap, H.L. Spahr, William C. Teichmann, Ernest L. Ives, William J. Pike, Thomas Willing Peters, and George Nicolas Ifft.

Festschrift der Universität Kiel zur feier des geburtsfestes Seiner Majestät des kaisers und königs Wilhelm II. Der álteste botanische garten Kiels. Urkundliche darstellung der begründung eines universitäts-instituts im siebzehnten jahrhundert.

Mode of access: Internet.

Mosaic image of the artificial light produced by Berlin on the night of September 11, 2010 observed from an altitude of 10,000 ft

Aerial observations of light pollution can fill an important gap between ground based surveys and nighttime satellite data. Terrestrially bound surveys are labor intensive and are generally limited to a small spatial extent, and while existing satellite data cover the whole world, they are limited to coarse resolution. This paper describes the production of a high resolution (1 m) mosaic image of the city of Berlin, Germany at night. The dataset is spatially analyzed to identify themajor sources of light pollution in the city based on urban land use data. An area-independent 'brightness factor' is introduced that allows direct comparison of the light emission from differently sized land use classes, and the percentage area with values above average brightness is calculated for each class. Using this methodology, lighting associated with streets has been found to be the dominant source of zenith directed light pollution (31.6%), although other land use classes have much higher average brightness. These results are compared with other urban light pollution quantification studies. The minimum resolution required for an analysis of this type is found to be near 10 m. Future applications of high resolution datasets such as this one could include: studies of the efficacy of light pollution mitigation measures, improved light pollution simulations, economic and energy use, the relationship between artificial light and ecological parameters (e.g. circadian rhythm, fitness, mate selection, species distributions, migration barriers and seasonal behavior), or the management of nightscapes. To encourage further scientific inquiry, the mosaic data is freely available at Pangaea.

Why Physical Geography? An analysis of justifications in teacher magazines in Germany

School geography is often quite different from academic geography and there are good reasons for that, as school is preparing young people to be able to lead the life they value instead of just training them to learn specific subject contents. In some countries school geography is understood as being mainly a social science. Nonetheless physical geography often plays an important part in textbooks and in everyday teaching in these countries. This presentation will examine how physical geography topics are justified in specialist teacher magazines in Germany. Are they justified by simply pointing at the value of the academic knowledge itself? Are they justified by claiming students’ special interest in these topics? Or are they justified by showing the value of physical geography in promoting social aims such as sustainable development, freedom or equality?