Memorials of William Cranch Bond: Director of the Harvard College Observatory 1840 1859 and of His Son George Philips Bond, Director of the Harvard College Observatory 1859 1865 (Classic Reprint)

New (perfect condition)

Pages are clean and are not marked by notes, highlighting or fold.

Like new (excellent condition)

Pages are clean and are not marked by notes, highlighting or folds.

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.