An error has occurred, the report has not been sent. Please check if the data is valid or try again later.
Sending declined. Incorrect text from the image.
Sending declined. reCAPTCHA verification has failed.
Report a problem related to object: Anfangsgründe der Naturlehre. Entworfen von Johann Christian Polykarp Erxleben […] Sechste Auflage. Mit Verbesserungen und vielen Zusätzten von G.C. Lichtenberg […]