Table VIII.--Table of frequency of digraphs, duals or pairs, Spanish text. Like Table III, this table is on the basis of 2,000 letters although prepared from a count of 20,000 letters. For this reason it is, to a certain extent an approximation; that is, merely because no figures are shown for certain combinations, we should not assume that such combinations never occur but rather that they are rare. The letters in the horizontal lines at the top and bottom are the leading letters; those in the vertical columns at the sides are the following letters. Thus, in two thousand letters, we may expect to find AI twice and IA twenty-three times. A B C D E F G H I J L M N O P Q R S T U V X Y Z A 9 4 19 11 5 6 17 23 54 18 9 3 20 29 11 21 8 6 2 5 A B 6 3 1 4 B C 24 6 6 24 5 3 8 8 9 5 2 2 C D 31 29 3 19 13 10 9 4 D E 12 2 6 59 10 1 5 7 2 12 18 22 4 9 38 25 28 25 3 3 E F 4 4 4 3 3 1 F G 2 4 8 4 2 G H 2 12 10 2 1 H I 2 23 16 5 2 3 11 13 6 10 5 3 I J 3 2 1 J L 21 3 6 39 3 3 7 21 5 6 12 2 2 L M 12 6 5 1 6 15 7 2 6 1 M N 32 46 2 8 32 12 2 N O 26 22 2 6 3 4 9 16 2 8 20 15 7 11 O P 13 3 2 4 9 2 7 4 11 P Q 11 5 1 2 3 1 Q R 40 27 2 4 4 36 3 11 17 3 R S 39 52 10 7 14 2 14 3 S