TheCodeBreakers
The, 30, 179-181 characteristics, 167-168 chief of American Black
Chamber, 6, 173-180 chief of Mi-8, 168-172 in China, 182-183, 323 interest in cryptology, 167-
169
"Japanese Diplomatic Secrets," 181 later life, 182-183 solves Japanese codes, 173-
177
Voynich manuscript, 433 "Yardley symptom," 168 Yezidis, 77
Yoshikawa, 15, 39, 44-45, 49 YU, 175-176 Yugoslavia, 246-247
Zacharias, E. M., 192-193 Zapp, Prof., 288 Zenith Radio Corporation, 0075 (German code), 134,
137, 139, 140, 142, 143,
145, 148
Ziegenriiger, J., 218-219 Zim, H. S., 458 Zimmermann telegram, 134-
153, 263 Zipf, G. K., 445
THE HISTORY
OF SECRET CODES—
AND THE MEN WHO HAVE
CREATED AND BROKEN
THEM WITH DRAMATIC
CONSEQUENCES
FOR THE WORLD!
"THRILLING!"
annaabi.ee 
