Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv', 960 - Übersendung von 25 Florin für den Fonds auf das Konto der Deutschen Vereinsbank zur Errichtung eines Schopenhauer-Monuments

u.a. Ludwig Noiré; Wille; Charles Darwin; Reise nach Danzig; Jules Lunteschütz; Julius Hamel; Bildnis;

Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv', 959 - Übersendung von 25 Florin für den Fonds auf das Konto der Deutschen Vereinsbank zur Errichtung eines Schopenhauer-Monuments

u.a. Bildnis Schopenhauer; Büste; Kritik an Schopenhauer von Heinrich Viehoff und Bartholomaeus Carneri; Farbenlehre; Immanuel Kant; Philosophie; Charles Darwin; Davis Strauss; Materialismus; Wille;

Digital image processing techniques as a tool for evaluating and mapping patinas on granite monuments

Monument conservation is related to the interaction between the original petrological parameters of the rock and external factors in the area where the building is sited, such as weather conditions, pollution, and so on. Depending on the environmental conditions and the characteristics of the materials used, different types of weathering predominate. In all, the appearance of surface crusts constitutes a first stage, whose origin can often be traced to the properties of the material itself. In the present study, different colours of “patinas” were distinguished by defining the threshold levels of greys associated with “pathology” in the histogram. These data were compared to background information and other parameters, such as mineralogical composition, porosity, and so on, as well as other visual signs of deterioration. The result is a map of the pathologies associated with “cover films” on monuments, which generate images by relating colour characteristics to desired properties or zones of interest.

Biofouling of crypts of historical and architectural interest at la Plata Cemetery (Argentina)

Cemeteries are part of the cultural heritage of urban communities, containing funerary crypts and monuments of historical and architectural interest. Efforts aimed at the conservation of these structures must target not only the abiotic stresses that cause their destruction, such as light and humidity, but also biofouling by biotic agents. The purpose of this study was to assess the development of biofouling of several historically and architecturally valuable crypts at La Plata Cemetery (Argentina). Samples obtained from the biofilms, lichens, and fungal colonies that had developed on the marble surfaces and cement mortar of these crypts were analyzed by conventional microbiological techniques and by scanning electron microscopy. The lichens were identified as Caloplaca austrocitrina, Lecanora albescens, Xanthoparmelia farinosa and Xanthoria candelaria, the fungi as Aspergillus sp., Penicillium sp., Fusarium sp., Candida sp. and Rhodotorula sp., and the bacteria as Bacillus sp. and Pseudomonas sp. The mechanisms by which these microorganisms cause the aesthetic and biochemical deterioration of the crypts are discussed.

Monuments arabes et moresques de Cordove, Séville et Grenade : dessinés et mesurés en 1832 et 1833 /

Special t.-p. for Granada: Souvenir de Grénade et de L'Alhambra. Paris, 1837.

List of monuments in Albania.

Reproduced from type-written copy.

List of monuments in Bulgaria.

Reproduced from type-written copy.