by Jerome Kagan with the collaboration of Nancy Snidman, Doreen Arcus, J. Steven Reznick. Dieter Schmidt ; with the collaboration of Lee Seldon. Roger Howe ; with the collaboration of Allen Moy. by Arminius Vamb鈋ry ; with the collaboration of Louis Heilprin. William A. Hachten ; with the collaboration of Harva Hachten. John Richardson with the collaboration of Marilyn McCully. Notes written with the collaboration of Richard Weiss. by Meirion Thomas ; with the collaboration of S.L. Ranson and J.A. Richardson. R. Creighton Buck, with the collaboration of Ellen F. Buck. Edited by P. Zuman, with the collaboration of I. M. Kolthoff.