Enfiteutas, propietarios, agregados y ocupantes en el 'nuevo sur': los partidos de Arenales y Ayacucho (1823-1860)

Este artículo se centra en la ocupación y apropiación de tierras en una región del sudeste de la provincia de Buenos Aires, que integraba en las primeras décadas del siglo XIX el llamado "nuevo sur": los partidos de Arenales y Ayacucho, entre 1823 y 1860. Comenzaremos por caracterizar el traspaso de estos territorios a particulares, el impacto de las distintas modalidades de transferencia y la evolución de la estructura de tenencia. Esto nos llevará a interrogarnos por los protagonistas de este proceso: ¿quiénes fueron los beneficiarios de este reparto? ¿cómo llegaron a estas tierras del "nuevo sur"? ¿cómo fue la conformación del grupo de propietarios en esta zona?, ¿permanecieron los mismos apellidos a lo largo del período? Además, ¿existieron, en esta zona como en otras regiones, posibilidades de ocupación sin la tenencia legal? La comparación con otros procesos de ocupación y apropiación de terrenos del estado, especialmente al sur del río Salado, nos posibilitará una visión más completa de este caso, que obviamente está integrado en un proceso más amplio.

The Paleocene-Eocene boundary in ODP Leg 208 sites

The Paleocene-Eocene thermal maximum (PETM) has been attributed to the rapid release of ~2000 * 10**9 metric tons of carbon in the form of methane. In theory, oxidation and ocean absorption of this carbon should have lowerd deep-sea pH, thereby triggering a rapid (<10,000-year) shoaling of the calcite compensation depth (CCD), followed by gradual recovery. Here we present geochemical data from five new South Atlantic deep-sea sections that constrain the timing and extent of massive sea-floor carbonate dissolution coincident with the PETM. The sections, from between 2.7 and 4.8 kilometers water depth, are marked by a prominent clay layer, the character of which indicates that the CCD shoaled rapidly (<10,000 years) by more than 2 kilometers and recovered gradually (>100,000 years). These findings indicate that a large mass of carbon (>>2000 * 10**9 metric tons of carbon) dissolved in the ocean at the Paleocene-Eocene boundary and that permanent sequestration of this carbon occurred through silicate weathering feedback.

Genotypic data for nine microsatellite loci for the seagrass Zostera muelleri collections from Lake Macquarie, NSW, Australia

Seagrasses are ecosystem engineers that offer important habitat for a large number of species and provide a range of ecosystem services. Many seagrass ecosystems are dominated by a single species; with research showing that genotypic diversity at fine spatial scales plays an important role in maintaining a range of ecosystem functions. However, for most seagrass species, information on fine-scale patterns of genetic variation in natural populations is lacking. In this study we use a hierarchical sampling design to determine levels of genetic and genotypic diversity at different spatial scales (centimeters, meters, kilometers) in the Australian seagrass Zostera muelleri. Our analysis shows that at fine-spatial scales (< 1 m) levels of genotypic diversity are relatively low (R (Plots) = 0.37 ± 0.06 SE), although there is some intermingling of genotypes. At the site (10's m) and meadow location (km) scale we found higher levels of genotypic diversity (R (sites) = 0.79 ± 0.04 SE; R (Locations) = 0.78 ± 0.04 SE). We found some sharing of genotypes between sites within meadows, but no sharing of genotypes between meadow locations. We also detected a high level of genetic structuring between meadow locations (FST = 0.278). Taken together, our results indicate that both sexual and asexual reproduction are important in maintaining meadows of Z. muelleri. The dominant mechanism of asexual reproduction appears to occur via localised rhizome extension, although the sharing of a limited number of genotypes over the scale of 10's of metres could also result from the localised dispersal and recruitment of fragments. The large number of unique genotypes at the meadow scale indicates that sexual reproduction is important in maintaining these populations, while the high level of genetic structuring suggests little gene flow and connectivity between our study sites. These results imply that recovery from disturbances will occur through both sexual and asexual regeneration, but the limited connectivity at the landscape-scale implies that recovery at meadow-scale losses is likely to be limited.

Letter from George Gardner Lee to Loammi Baldwin, 10 January 1814

Lee, a Boston merchant who often represented the city as deputy in the Massachusetts General Court, asks Baldwin if the laborers laying the bricks and stone for University Hall could be loaned for a few days to work on the construction of the South meeting house [New South Church].

Law Building

Jordan & Anderson, architects. Completed in 1863. Served as Law School for 60 years; contained University Chapel until 1873 and Library until 1883. Addition in 1893 included tower; additional space added in 1898. Tower removed in 1898 addition and renovation. Room for Regents built in new south wing; they met there for 35 years. Upon completion of Hutchins Hall in 1933, the Law Building was renamed Haven Hall and was used by Literature Science & the Arts. It burned on June 6, 1950. It was located at the northwest corner of the Diag, corner of State and North University.

Law Building

Jordan & Anderson, architects. Completed in 1863. Served as Law School for 60 years; contained University Chapel until 1873 and Library until 1883. Addition in 1893 included tower; additional space added in 1898. Tower removed in 1898 addition and renovation. Room for Regents built in new south wing; they met there for 35 years. Upon completion of Hutchins Hall in 1933, the Law Building was renamed Haven Hall and was used by Literature Science & the Arts. It burned on June 6, 1950. It was located at the northwest corner of the Diag, corner of State and North University.

Law Building

Jordan & Anderson, architects. Completed in 1863. Served as Law School for 60 years; contained University Chapel until 1873 and Library until 1883. Addition in 1893 included tower; additional space added in 1898. Tower removed in 1898 addition and renovation. Room for Regents built in new south wing; they met there for 35 years. Upon completion of Hutchins Hall in 1933, the Law Building was renamed Haven Hall and was used by Literature Science & the Arts. It burned on June 6, 1950. It was located at the northwest corner of the Diag, corner of State and North University. With picket fence.

Law Building

Jordan & Anderson, architects. Completed in 1863. Served as Law School for 60 years; contained University Chapel until 1873 and Library until 1883. Addition in 1893 included tower; additional space added in 1898. Tower removed in 1898 addition and renovation. Room for Regents built in new south wing; they met there for 35 years. Upon completion of Hutchins Hall in 1933, the Law Building was renamed Haven Hall and was used by Literature Science & the Arts. It burned on June 6, 1950. It was located at the northwest corner of the Diag, corner of State and North University. With picket fence. On verso: Photographed in 1887 by A.L. Colton, class of '89.

Law Building

Jordan & Anderson, architects. Completed in 1863. Served as Law School for 60 years; contained University Chapel until 1873 and Library until 1883. Addition in 1893 included tower; additional space added in 1898. Tower removed in 1898 addition and renovation. Room for Regents built in new south wing; they met there for 35 years. Upon completion of Hutchins Hall in 1933, the Law Building was renamed Haven Hall and was used by Literature Science & the Arts. It burned on June 6, 1950. It was located at the northwest corner of the Diag, corner of State and North University. Several people in distance.

Law Building

Jordan & Anderson, architects. Completed in 1863. Served as Law School for 60 years; contained University Chapel until 1873 and Library until 1883. Addition in 1893 included tower; additional space added in 1898. Tower removed in 1898 addition and renovation. Room for Regents built in new south wing; they met there for 35 years. Upon completion of Hutchins Hall in 1933, the Law Building was renamed Haven Hall and was used by Literature Science & the Arts. It burned on June 6, 1950. It was located at the northwest corner of the Diag, corner of State and North University.

Haven Hall Exterior

Jordan & Anderson, architects. Built 1863. Northwest corner of Diagonal on corner of State and North University. Served as Law School for sixty years. An 1898 addition completely altered the exterior, removed the tower, and added a new south wing (Spier & Rohns, architect). Regents met in south wing until 1933. When Law moved to Hutchins Hall in 1933, building was renamed Haven Hall in honor of Erastus O. Haven, president, 1863-1869. Haven Hall became an LS&A building until it was destroyed by fire June 6, 1950. Several people in image.

Virginia; its climate, soil, productions, manufacturing industries, and mineral wealth.

Reprint of p. 64-93 of the author's "New South".

The banks of Wye; a poem. In four books.

A description in verse of an excursion down the Wye and through part of South Wales taken by the author and a party of Gloucestershire friends in the summer of 1807. Cf. Preface.

Down our way ; stories of southern and western character,

A visible sign.--The end of society.--An adventure of a lady of quality.--A part of the new South.--A conflict of rights.--The Morningstar elopement.--The wife of a carpenter.--A gentlewoman.--The blue blazers.