The University of Kansas Natural History Reservation /

Mode of access: Internet.

Inland wetlands of the United States : evaluated as potential registered natural landmarks /

Mode of access: Internet.

National registry of natural landmarks /

Mode of access: Internet.

Preservation of natural conditions,

"Reprinted for the Committee, 1921, with the aid of the National research council."

Historic preservation; annual report.

Report year ends June 30.

Explorers and settlers; historic places commemorating the early exploration and settlement of the United States.

Includes bibliographies.

Public use of the national park system.

Annual.

Forest Lodge : a living legancy.

4 leaves in pocket on p. [3] of cover.

Convention and documentary material on nature protection and wild life preservation in the western hemisphere.

Mode of access: Internet.

The pottery from A and C-Group tombs at Serra West in the Museum of Natural History, La Plata

Abstract: The Museum of Natural History, La Plata, Argentina, houses a ceramic collection of the A-Group and C-Group cultures from Nubian tombs at Serra West (AA and ACS cemeteries), on the west bank of the Nile in Lower Nubia. It has been originated from the division after the excavations made by the Franco-Argentine Archaeological Expedition in Sudan between 1961 and 1963, as part of the UNESCO campaigns to save the Nubian monuments.

Ramesside, Late Nubian and christian pottery from Serra West in the Museum of Natural History, La Plata

Resumen: El Museo de Ciencias Naturales de La Plata, Argentina, posee una colección de piezas cerámicas provenientes del asentamiento egipcio y de la iglesia de Aksha, y de las tumbas nubias de Serra Oeste, sobre la margen izquierda del Nilo en la Baja Nubia, que pertenecen a las culturas meroítica y del Grupo X. Esta colección es producto del reparto después de las excavaciones realizadas por la Expedición Franco-Argentina en Sudán entre 1961 y 1963, como parte de las campañas de la UNESCO para salvar los monumentos de Nubia.

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.

Manual of horizontal and vertical control monuments : MNC Midlothian - Natalie Creeks, Cook County, Illinois.

Provides location of monuments installed by the Office of Water Resources which indicate land elevation along Midlothian and Natalie Creeks.

Natural Science

Southeast corner of building. Albert Kahn, architect. Irwin & Leighton, contractors. Construction 1914-1915. Building named for Edward H. Kraus.

Final environmental impact statement, general management plan/development concept plan for Natural Bridges National Monument /

"NPS D-18A"--P. [3] of cover.