TheCodeBreakers
192, 207, 302
Codebreaking, definition, xv Codegroups, definition, xii-xiii Codenames, 266-268 See also under individual
codenames
Codenumbers, definition, xii Codetext, definition, xiv Codewords, definition, xii Coincidence, theory of, 189
Collins, S. W., 286 Combat Intelligence Unit, 8,
10,12,16,35,300-314 Communications intelligence,
xv Communications Intelligence
Summary, 37
Communications security, xv "Communication Theory of Secrecy Systems," 443-444
464 Ititi
Computers and tabulators,
393-395
COMSEC, 387-390 Consolidated Exporters Corporation, 421-422 COPEK, 30,45,303,311 Coral Sea, Battle of, 304-305,
310
Corbiere, A., 107 Corderman,W. P., 317 Cory, Mr., 33 Council of Ten, 83 Craig, M., 14 Cramer, G., 413 Cryptanalysis
as a physical science, 440-
442 becomes a major element of
intelligence, 165 becomes most important element of intelligence, 339-340