An Evaluation of Chemical Methods for Restoring Erased Ink Writing

Osborn A. S. , Questioned Documents, (2nd. Ed.) (1929), p. 547–49.

Quirke A. J. , Forged, Anonymous and Suspect Documents, (1930), pp. 179–80.

Lucas A. , Forensic Chemistry and Scientific Criminal Investigation, (4th Ed.) (1946), pp. 96–98.

O'Neill M. E. , Restoration of Obliterated Ink Writing, Jour. Criminal Law and Ciminology, vol. 27: 574–77, (1936).

Rhodes H. T. F. , Forensic Chemistry (1940), pp. 126 and 135.

O'Hara C. E. and Osterburg J. W. , An Introduction to Criminalistics, (1952), pp. 485–91.

Mellet R. and Bischoff M. A. , Application du phenomene de teinture a la revivification de textes laves, Comptes rendus des seances de l'Academie des Sciences, vol. 181, p. 868, (30 Nov., 1925).

Kirk P. L. , Crime Investigation (1953), p. 455, 756–7.

Hasleden R. B. , Scientific Aids for the Study of Manuscripts, (1935), p. 66.

Gayet Jean , Laboratoire de Police Technique, Lyon, personal correspondence.

Schmitt C. A. , Reading, Mass., personal correspondence.

Fearon E. H. , Pittsburgh, Pa., personal correspondence.

Fegl F. , Qualitative Analysis by Spot Tests, (1937), pp. 126–7.

U.S. Patent Office Patent No. 2,123,597 of July 12, 1938, entitled “Means of Detecting Alterations of Document,” issued to Josef Ehrlich, Vienna, Austria. U.S. Patent rights have now expired.

Souder Wilmer , Washington, D.C., personal correspondence.