quill: see pen.

Quill, Michael Joseph, 1905-66, American labor leader, b. Co. Kerry, Ireland. Quill was active (1919-23) in the movement for Irish independence before emigrating (1926) to the United States. He worked as a laborer and in the New York City subways, and in 1934 he helped to organize the Transport Workers Union of America, of which he became president in 1935. In 1937 the union became affiliated with the Congress of Industrial Organizations, and Quill succeeded, with the help of John L. Lewis, in getting closed-shop contracts with transit lines of New York City. He then led in expanding the activities of the union to other big cities in the United States. As a member (1937-39, 1943-49) of the city council of New York, Quill—a colorful and fiery speaker—fought for numerous municipal reforms. Quill died shortly after he led a transit strike that paralyzed New York City for 12 days.

Heavy-bodied, solitary, slow-moving, nocturnal rodent with quills (modified hairs) along the back, tail, and, on certain crested species, the neck and shoulders. The quills are easily detached when touched. The New World species (four genera in family Erethizontidae) are arboreal and have barbed quills; the Old World species (four genera in family Hystricidae) are terrestrial and have unbarbed quills. The North American porcupine (Erethizon dorsatum), about 31 in. (80 cm) long with a tail about 12 in. (30 cm) long and quills about 3 in. (8 cm) long, drives its powerful tail against an assailant. For food, it favours the tender tissue beneath tree bark. Crested porcupines, the typical Old World porcupines, run backward, quills erect, into the enemy. They eat roots, fruit, and other vegetation. The African crested porcupine, the largest terrestrial rodent in Europe and Africa, may weigh 60 lb (27 kg) and have quills 14 in. (35 cm) long.

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