On the Corpus Luteum of Menstruation and Pregnancy, Jno. C. Dalton, Jr., MD, 1851

This 100-page pamphlet is organized into three sections—menstruation, pregnancy, and observation of animals. The last few pages include color illustrations, or “chromolithographs.” The work was written by the first neurophysiologist in America, Dr. Dalton (1825–1889), who studied under Claude Bernard early in his career.

It’s challenging, but essential, to capture the color and detail in digitized versions of works with illustrations. To ensure our scans meet federal standards and represent the original as closely as possible, we use software that verifies compliance to image specifications. Our goal is to provide the richest and most informative experience possible for our current and future patrons.

—Librarian, Digitization Specialist