Developmental defects and postmortem changes in archaeological pig teeth from Fais Island,Micronesia

The study investigated developmental defects of the dental hard tissues and postmortem changes in archaeological pig molars from Fais Island, Micronesia. The developmental defects of enamel were indicative of a disturbance of the secretory stage (accentuation of the incremental pattern, occurrence of Wilson bands and of hypoplastic defects) and the maturation stage of amelogenesis (hypomineralisation). Presence of coronal cementum in an M₃ indicated a partial premature breakdown of the reduced enamel epithelium or a partial demise of the enamel organ earlier during tooth development. Developmental defects of dentine presented as accentuated Andresen lines and areas of interglobular dentine. The pattern of developmental defects in the studied molars and the fact that deciduous premolars of the pigs from Fais did not exhibit developmental defects on macroscopic inspection are consistent with the hypothesis that the tooth defects were caused by periods of severe nutritional stress occurring after weaning. Postmortem changes caused by microbial infiltration were recorded in dentine and cementum. A presumed case of soft tissue preservation in the form of presence of odontoblast processes was observed in an M¹.     

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Eine naturwissenschaftliche Forschungsbibliothek des 18. Jahrhunderts: Die Bibliothek der ‚Naturforschenden Gesellschaft’︁ zu Jena

The ?Naturforschende Gesellschaft’?, founded in 1793, proved instrumental for the development of science at the University of Jena around 1800. Its library can be considered as one of its most important facilities provided for research and for the education of students. Since this library has been preserved almost without losses, we can ask whether this library served the purpose of a research library in the newly established field of ?science’?. In consequence, the role of scientific societies and the genesis of specialised libraries in the area of science can be investigated in an exemplary case, with implications for the concept of scientific research around 1800.