On the Motion and Measurement of Water

FA 3876.21 This is a library call number, a unique alphanumeric code used to locate the book on the shelf. The "FA" prefix typically refers to the Fine Arts collection.

Pierce fund The Henry Lillie Pierce Fund was established by a bequest from the former Mayor of Boston (1825–1896). It was a major source of funding for Harvard Library acquisitions in the late 19th century, particularly for significant scientific and historical works.
black original: "noir"; this French term likely refers to the color of the book's binding or a specific cataloging category used by the librarian or book dealer.