Analysis of Ancient Paper Structure in Transmitted Light by Application of Different Microscopic Techniques. Examples From Collection of The Kórnik Library of the Polish Academy of Science

Abstract

Investigation methods of photographic materials mainly from the Kórnik Library are presented in this paper. Author focused on application of stereoscopic microscopes equipped with polarized light and the dark field condenser. These tools are very useful for identification, investigation of structures of degradation products of materials, conservation treatments effectiveness, and for other purposes.