ocr: doctor: "A mass of matter, composed principally of the twigs of trees broken into pieces about two inches in length, and varying in size from very small twigs to half an inch in diameter [also] finely divided leaves; the whole amounting to from four to six bushel[s]." The specimen is named for John Warren, a professor of anatomy at Harvard University who bought the remains, wrote about them, and displayed them in a small museum in Boston. The Warren Mastodon was acquired by the American Museum of Natural History in 1925. Mastodons, like living elephants, are proboscideans (mammals with enlarge ...