A B C D E F G H I J L M N O P Q R S T U V X Y Z and the receiver must supply the accents and the tilde over the N to conform to the general sense. However, many Mexican cipher alphabets contain the letters K and W. This is particularly true of the ciphers in use by secret service agents who must be prepared to handle words like NEW YORK, WILSON and WASHINGTON. The letters K and W will, however, have a negligible frequency except in short messages where words like these occur more than once. In this connection, if a cipher contains Mexican geographical names like CHIHUAHUA, MEXICO, MUZQUIZ, the letters H, X and Z will have a somewhat exaggerated frequency. In Spanish, the letter Q is always followed by U and the U is always followed by one of the other vowels, A, E, I or O. As QUE or QUI occurs not infrequently in Spanish text, particularly in telegraphic correspondence, it is well worth noting that, if a Q occurs in a transposition cipher, we must connect it with U and another vowel. The clue to several transposition ciphers has been found from this simple relation. Table VII.--Normal frequency table for military orders and reports, calculated on a basis of 10,000 letters of Spanish text. The graphic form is on a basis of 200 letters. 10,000 Letters 200 Letters A 1352 27 111111111111111111111111111 B 102 2 11 C 474 9 111111111 D 524 10 1111111111 E 1402 28 1111111111111111111111111111 F 91 2 11 G 137 3 111 H 102 2 11 I 606 12 111111111111 J 41 1 1 L 517 10 1111111111 M 300 6 111111 N 619 12 111111111111 O 818 16 1111111111111111 P 257 5 11111 Q 87 2 11 R 751 15 111111111111111 S 724 14 11111111111111 T 422 8 11111111 U 387 7 1111111 V 85 2 11 X 6 Y 103 2 11 Z 42 1 1 In this table the vowels AEIOU = 45.65%; consonants LNRST = 30.33%; consonants JKQXZ = 1.76%. Order of letters: E A O R S N I D L C T U M P G Y (BH) F Q V Z J X.