Ḥizb al-baḥr / min taʼlīf al-shaykh al-imām al-ʻālim al-ʻāmil al-walī al-ʻārif al-quṭb al-jāmiʻ al-wārith Abī al-Ḥasan al-Ḥasanī al-Shādhilī : manuscript, [ca. 1360]

Paper. 15.7 x 11.4 cm. (13.3 x 9.3 cm.).

Baḥr al-kalām / li-Abī Muʻīn al-Nasafī : manuscript, undated

Title from fol. 1r.

Ajwibat al-asʼilah al-ithnay ʻashar fī al-ʻulūm al-ithnay ʻashar : wa-hiya al-ṣarf wa-al-naḥw wa-al-fiqh wa-al-ḥadīth wa-al-tafsīr wa-al-kalām wa-al-maʻānī wa-al-bayān wa-ādāb al-baḥth wa-al-manṭiq wa-al-ḥikmah wa-al-hayʼah / li-Ibn Abī Bakr al-Kurdī : manuscript, 1582

Title from f. 1r.

Janāb-i Ba-davlatnī hikāyātlārī : manuscript, 1904 or 5

An eyewitness account of Yaqub Beg's rule in parts of Xinjiang.

Phosphorus components, trace metals and Ba excess of ODP Site 202-1237 sediments

We determined the sedimentary concentrations of phosphorus (P), barium (Ba), manganese (Mn), titanium (Ti), aluminum (Al), and uranium (U) for sediment samples from the southeast Pacific Nazca Ridge, Ocean Drilling Program Site 1237. This unique record extends to 31 Ma over 360 meters composite depth (mcd), recording depositional history as the site progressed eastward over its paleohistory. We sampled with a temporal resolution of ~0.2 m.y. throughout the sequence, equivalent to an average spacing of 1.63 m/sample. Concentrations of sequentially extracted components of P (oxide-associated, authigenic, organic, and detrital) increase toward the modern. Al/Ti ratios indicate that the background detrital source material is consistent with upper continental crust. U enrichment factors (U EFs) generally exceed crustal values and indicate slightly reducing environments. However, authigenic U precipitation can also be influenced by the organic carbon rain rate and may not be solely an indicator of redox conditions. Dramatic changes in Mn EFs at ~162 mcd, from values between 12 and 93 to values <12 after this depth, and a sharp color contact boundary lead us to believe that a paleoredox boundary from an oxygenated to a more reducing depositional environment occurred near this depth. Estimates of biogenic barite concentrations from a total sediment digestion technique (Ba excess) are greater than those from a barite extraction (Ba barite) for selected samples across the entire depth range. Applying a range of Ba/Ti ratios from different source materials to correct for detrital inputs does not change the lack of agreement with Ba barite concentrations. Reactive P (P reactive) concentrations (the sum of oxide-associated, authigenic, and organic P concentrations) increase toward the modern with values typically <12 µmol P/g from the base of our record through ~100 mcd, with a gradual increase to concentrations >15 µmol P/g. Ba excess follows the same general trends as Preactive, with concentrations <14 µmol Ba/g in the lower portion of the record to values >15 µmol Ba/g. Accumulation rate records of these proxies will be needed to infer paleoproductivity. P reactive/Ba excess ratios, an indicator of the relative burial of the nutrient P to organic carbon export, exhibit higher values, similar to modern, from the base of our record through ~180 mcd. The remainder of the record exhibits values lower than modern, indicating that organic carbon export to the sediments was higher relative to nutrient burial.

Ba/Ca ratios in benthic foraminifera from recent core tops

The carbon isotope ratio (delta13C) and cadmium content (Cd/Ca) of benthic foraminifera shells have been used to reconstruct deep-water circulation patterns of the glacial oceans. These tracers co-vary with phosphorus in the modern ocean because they are nearly quantitatively regenerated from sinking biological debris in the upper water column. Hence they can be used to reconstruct the distribution of labile nutrients in glacial water masses. Independent constraints on glacial deep-ocean circulation patterns could be provided by a tracer of the distribution of silica and alkalinity, the deeply regenerated constituents of planktonic hard parts. Barium shares key aspects of its behaviour with these refractory nutrients because it is removed from solution in surface waters and incorporated into sinking particles which slowly dissolve deep in the water column and in the sediments. The fractionation of Ba between deep-water masses of the major ocean basins is largely controlled by thermohaline circulation patterns, so Ba conforms to different boundary conditions from Cd and 13C. As Ba substitutes into trigonal carbonates, it is a potential palaeoceano-graphic tracer if the Ba content of foraminifera shells reflects ambient dissolved Ba concentrations. Here we present data from Recent core-top benthic foraminifera which indicate that the Ba content of some recent calcitic benthic foraminifera does co-vary with bottom-water Ba.

Obras poéticas de Don José María Roa Bárcena de la Academia mejicana correspondiente de la española; publicanlas sus hijas con una introducción.

"Edicion completa de 200 ejemplares numerados. Ejemplar núm. 1 vendido.

Castalia bárbara. Los sueños son vida.

"A Castalia Bárbara (1899) se une, en la presente edición, la última obra lírica de Jaimes Freyre: Los sueños son vida (1917)"--Pref.

Castalia bárbara;

Mode of access: Internet.