In this contribution I want to describe my activities in the Max-Planck-Institute for Chemistry in Mainz and later in the Institute of Mineralogy at the University of Cologne. My field of activity is cosmochemistry. The term cosmochemistry as I use it throughout the paper implies the chemical and isotopic analysis of extraterrestrial matter. I will begin with a short history of the Max-Planck-Institute for Chemistry, followed by a discussion of the beginning, and the development of cosmochemistry in Germany during the second half of the 19th century. At this time the cosmochemistry and later the geochemistry departments of the...

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