These combinations appear among others:

162452
HTIGFI
CIVIEV
YALAEL
EWENRE
LSRAER
VINDAN
NGDIRD
ECSRES
FIILRI

The word FIGHT stares at us from the first line; let us arrange the columns thus:

524163
FIGHTI
EVICIN
ELAYAH
RENEWE
ERALSO
ANDVIL
RDINGT
ESRECE
RILFIF

We have the words FIGHTI(NG), VICIN(ITY), RENEWE(D), ANDVIL(LA), RDINGT(O), RECE(IVED). With this to go on, we must choose column 11 as the next one and then in order, columns 8, 10, 7, 12, 9. But note that the order 11, 8, 10, 7, 12, 9, is the same as the order 5, 2, 4, 1, 6, 3. The message was written in twelve columns and the columns have been transposed in that order. We may, although it is entirely unnecessary, speculate on the key word used. It was probably

M E X I C O
4 2 6 3 1 5

meaning that the 4th column of the plain text was transferred in enciphering so it became our 1st, the 2d column remained the 2d; the 6th column became our 3d, etc.

Actually, this cipher was solved because the word VILLA was suspected and all the necessary letters were found in line six of the arrangement in twelve columns. The order 1, 6, 3, 11, 8 was tried and gave this result.

163118
HTING
CINIT
YAHAS
EWEDB
LSOBR
VILLA
NGTOA
ECEIV
FIFTE

The remainder of the solution followed the lines already laid down and, naturally, offered no difficulties, in view of the large number of connected syllables available.