Dokumente Einer Freundschaft: Briefwechsel Zwischen Hermann Von Helmholtz Und Emil Du Bois-reymond 1846-1894. Mit Einer Wissenschaftsgeschichtlichen

New (perfect condition)

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Very good (good condition)

Pages are intact and may have minimal notes and/or highlighting or folds.

Good (clean condition)

All pages and the cover is intact. The spine may show signs of wear. Pages include notes and/or highlighting.

Acceptable (readable condition)

All pages and the cover is intact. Pages include considerable notes in pen or highlighter, but the text is not obscured.