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The Order of the Hospital of St John was among the most creative and important institutions of the Middle Ages, its history provoking much debate and controversy. However, there has been very little study of the way in which it operated as an organisation contributing to the survival of the Christian settlement in the East, a gap which this book addresses. It focuses on the impact of the various crises in the East upon the Order, looking at how it reacted to events, the contributions that western priories played in the rehabilitation of the East, and the various efforts made to restore its...

Mutualisms, interactions between two species that benefit both of them, have long captured the public imagination. Their influence transcends levels of biological organization from cells to populations, communities, and ecosystems. Mutualistic symbioses were crucial to the origin of eukaryotic cells, and perhaps to the invasion of land. Mutualisms occur in every terrestrial and aquatic habitat; indeed, ecologists now believe that almost every species on Earth is involved directly or indirectly in one or more of these interactions. Mutualisms are essential to the reproduction and survival of...

Mutualisms, interactions between two species that benefit both of them, have long captured the public imagination. Their influence transcends levels of biological organization from cells to populations, communities, and ecosystems. Mutualistic symbioses were crucial to the origin of eukaryotic cells, and perhaps to the invasion of land. Mutualisms occur in every terrestrial and aquatic habitat; indeed, ecologists now believe that almost every species on Earth is involved directly or indirectly in one or more of these interactions. Mutualisms are essential to the reproduction and survival of...

Settlement and Crusade in the Thirteenth Century sheds new light on formerly less explored aspects of the crusading movement and the Latin East during the thirteenth century. It will be of interest to scholars and students of the medieval period, as well as those interested in the crusades, archaeology, and material culture.