12mo, 125pp. Flexible navy blue leather wallet binding with gilt-stamped fold. Bound with ruled pages interleaving the text and a pencil loop and expandable pocket at rear. A Fair copy with stiff repair to the split edges of the leather flap where it folds. Rubbing to corners with slight loss at the spine ends. First blank stamped, "Surplus - 5, Library of Congress Duplicate." Two leaves of notes referencing officers loosely inserted; bound-in note pages are unused.

Biographical note from his archive, held at the National Library of Medicine: "Greenleaf was born in Pennsylvania and educated at the Medical College of Ohio, graduating in 1860. During the Civil War, he oversaw construction of Philadelphia's Mower Hospital on Chestnut Hill, which was at the time the largest military hospital in the world. He introduced a system of personal identification used by the army and organized the army's Hospital Corps. Greenleaf wrote Manual for the Medical Officers of the U.S. Army (1864), Epitome of Tripler's Manual for the examination of recruits (1884, 1893, 1903), Personal identity of the soldier (1892-93)."