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Credit
Technical methods of chemical analysis / edited by George Lunge ... in collaboration with E. Adam, F. Barnstein [and others] ... English translation from the latest German ed., adapted to English conditions of manufacture, edited by Charles Alexander Keane ... in collaboration with T.L. Bailey, C.O. Bannister [and others]. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). Source: Wellcome Collection.