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    Graeco-Egyptian, Byzantine and Post-Byzantine Alchemy: Introductory Remarks

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    Description of the main phases of development of ancient alchemy, from the Graeco-Roman Egypt to the late Byzantine Perio

    Alchemy

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    Byzantine Matters

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    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    The Christianity of the Philosopher Christianos

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    The alchemical philosopher “Christianos” (late 6th [?] – 8th cent. CE) demonstrates that alchemical knowledge is a gift of God and describes the virtues that a philosopher-alchemist must possess to receive it. These and other Christian elements should not be considered as a Christian gloss on alchemical ideas. As a result of his exposure to the Neoplatonic mathematization of philosophical ideas, Christianos develops a precise method for defining and classifying alchemical productions on a mathematical basis. This mathematization intends to legitimize alchemy as a licit philosophical field, by presenting it as sharing similar traits with the sciences of the quadrivium. Christianos appears to have regarded this mathematical approach as a path illuminated by God through which a worthy philosopher-alchemist could partake in divine knowledge. The virtuous conduct and the mathematical method serve as two intertwined prerequisites in the pursuit of alchemical knowledge, facilitating at the same time the demarcation between true and false pursuers of knowledge.</jats:p
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