H. ZILLIACUS, Sylloge Inscriptionum Christianarum Veterum Musei Vaticani (Acta Instituti Romani Finlandiae, I : 1, 2). Helsinki, Akateeminen Kirjakauppa, 1963. XX, 316, XI, 249 p. Pr. F. M. 50. I. KAJANTO, Onomastic Studies in the Early Christian Inscriptions of Rome and Carthage (id., II : 1). Ibid., 1963. X, 141 p. Pr. F.M. 12. H. NORDBERG, Biometrical Notes (id., II : 2). Ibid., 1963. 76 p. Pr. F.M. 6