_Radioisotopes in the Service of Man_, Fernand Lot, National Agency for
International Publications, 317 East 34th Street, New York 10016,
1958, 82 pp., $1.00.
_Science and Cancer_, M. B. Shimkin, Public Health Service Publication
No. 1162, Superintendent of Documents, U. S. Government Printing
Office, Washington, D. C. 20402, 1964, 137 pp., $0.60.