Mid to late Holocene hydrological change in continental eastern Canada: assessing regional trends from ombrotrophic peat records.

ABSTRACT High resolution records of mid-late Holocene hydro-climatic change are presented from Mer Bleue Bog, eastern Ontario. Past climatic changes in this region have previously been inferred from lake sediments, but rain-fed peatlands can offer additional insights into the spatial and temporal pattern of moisture availability. In this study, reconstructed water table depths are based on a testate amoeba-derived transfer function developed for the region and changes in bog surface wetness are compared with plant macrofossil and peat humification data.

RÉSUMÉ Nous présentons les enregistrements hautes résolutions des variations hydrologique durant la second moitié de l’Holocène pour les tourbières Mer Bleue á l’est de l'Ontario. Précédemment, les changements climatiques de cette région ont été dérivés à partir de prélèvement de sédiments de lac. Mais ils s’avèrent que les tourbières ombrotrophes offrir un éclairage supplémentaire sur les schémas de répartition spatiale et temporelle de la disponibilité de l'humidité. Dans cette étude, des profondeurs reconstruites de nappe phréatique sont basées sur un modèle de function de transfert d’amibes (Arcellinida) et des changements de l’humidité de surface de la tourbière sont comparés avec les macrofossils et au humification de tourbe dans une analyse multi-proxy.

Antonio y Gabriel de Sancha, libreros de la Ilustración, y sus relaciones comerciales con Inglaterra

In this article we take as our point of departure the booksellers' catalogues printed by the Sanchas during the reigns of Charles III and Charles IV, as well as the catalogues issued by their London correspondents the booksellers Thomas Payne and Benjamin White. We contextualize the business relationship which developed between the Sanchas and the London booksellers as a direct result of Gabriel de Sancha's visit to London in the Summer of 1784. This study highlights the significance of a parallel offer of recently published books in English and Spanish in some of the most renowned bookshops in Madrid and London between the mid 1780s and the years immediately before the Peninsular War, a circumstance that no doubt stimulated curiosity on both sides and sped up the transfert culturel between both countries. Notwithstanding their business and private troubles, Antonio and Gabriel de Sancha, self-reliant entrepreneurs and cultural intermediaries, were able to establish a dynamic book trade flow which did not imply the subordination of Spain to England.