19th. Reverse the order of the letters of the whole message, viz. _Cotton is on the rise_, transposed and reversed, _sfwl sto &q fw &qoqz_. 20th. Change the key, alternately, every ten or fifteen words, using two keys. 21st. Let the two first letters of all words of four letters be affixed to the end of the preceding word, and the remaining two letters be prefixed to the word following, viz. _stocks have fallen_, transposed, _foqzuftr gsxrvs&_. 22d. Change the key irregularly, thus, for example, the first three words transpose from one key; the next three words from another key; the next three from another key, and so on. 23d. Reverse the termination of those words ending with _tion_, _sion_, _ness_, _less_, _tive_, _ty_, _ly_, _ed_, &c. 24th. Make a division of long words into two. 25th. Let those words which occur frequently and have only two or three letters remain unchanged, viz. _to_, _a_, _the_, _of_, _and_, _for_, _with_, &c. 26th. Let every two words, or every three, or every four, be reversed. 27th. Omit one vowel in every word. 28th. Omit the letter _e_ at the beginning and end of a word. 29th. Omit the letter _i_ or _y_ at the beginning and end of a word. 30th. Omit the letter _o_ at the beginning and end of a word. 31st. In words of 4, 6, 8, 10 or 12 letters, let the first of the two middle letters commence the word, and the last of the two middle letters end the word. 32d. Let _t_ signify _the_; _e_ for _of the_; _f_ for _of_; _u_ for _you_; _wi_ for _with_; _i_ for _by_; _tt_ for _that_; _ts_ for _this_; _fr_ for _from_; _n_ for _no_ or _not_; _w_ for _will_; _td_ for _to-day_; _tm_ for _to-morrow_; _s_ for _was_; _sh_ for _shall_; _wd_ for _would_; _sd_ for _should_; _cd_ for _could_; _te_ for _to the_. We have here given a few of the various modes, by which a message can be made so complicated, that no clue will be given that shall enable the inquisitive to decypher it. Others may be easily devised, and as it is better that those using the secret alphabet should devise their own modes of transposition and reversion, none others need be given. The following is written from the secret alphabet, and afterwards rendered more obscure by one of the methods laid down above. The key does not accompany it. Who can decypher it?