Landa’s key contains seventy-one signs (twenty for the days, eighteen for the months, and thirty-three in the alphabet.) M. de Rosny, by a careful examination of all the hieratic texts of the Mayas which are known, has discovered more than seven hundred different signs. Of this number he has deciphered and classified four hundred and thirty-nine as follows: Alphabetic signs, including Landa’s (of which all the others are but varieties), two hundred and sixty-two; signs of the days, one hundred and fifty-nine; and the eighteen signs of the months given by Landa. All these signs are classified in a double folio plate (Pl. XIII) which we believe deserves to be regarded as the larger portion of the much-sought-for Maya Rosetta stone. Considerable difference of opinion has existed as to the direction in which the hieroglyphics should be read. Brasseur held the view that the proper order was from right to left, and that the beginning of a book was where our books end. This mistake brought down the ridicule of scholars upon the Abbé’s head, when it was discovered that he had begun at the wrong end to translate the _Troano MS._ Mr. Bollaert says, “I have read from the bottom upwards and from right to left.”[614] Dr. Brinton[615] has suggested some such order as the following arrangement of the word _marvellous_: o ll m u e a s v r M. de Rosny has shown that the statement of Landa and the fact that the human faces shown in the hieroglyphs look toward the left, indicate that the signs should be read from left to right.[616] In rare cases this order is reversed, as is seen on a couple of leaves of the _Codex Peresianus_. There are, no doubt, numerous instances in which the signs are arranged in perpendicular columns, and the order in which such columns are to be read is not the same in all manuscripts. In the Maya inscriptions and manuscripts, the “illustrations” or pictorial figures are interwoven with the alphabetic signs forming an important part of the writing. In many cases a page of MS. (as shown in Rosny’s plates) is divided into sections or squares, in which the hieroglyphics are inseparably connected with grotesque figures which accompany them and form a part of the writing. M. de Rosny has undertaken the classification and interpretation of all these figures which are found in the existing Maya MSS. This doubtless will prove an important auxiliary to the table of signs already alluded to. We may reasonably expect that since M. de Rosny has shown the extensive character of the Maya phonetic and symbolic alphabet, he will furnish us examples of its application in the practical interpretation of the hieroglyphics, in the latter part of his work. Recently Dr. Ph. Valentini has pronounced the Landa alphabet a Spanish fabrication, of later date than the conquest. See _Proceedings of Amer. Antiquarian Soc._ for April, 1880.