On the cover: The changing face of The Journal of Immunology. The cover design did not vary much over the first five decades of the journal's life, but in the last 40 years, it has undergone multiple metamorphoses. Clockwise from top left: July 1, 1986; February 1916; April 1, 1991 (75th Anniversary Issue celebrating the 1916 founding of The JI); February 1936; July 1, 1997; June 1946; July 1, 1995; July 1926. Center: January 1, 2003.