Dr. Förstemann says that this entire series of black numerals covers 2,920 days, or 8 years of 365 days. This is true, but the concluding figures show that it is given by the writer of the codex as 8 years and 2 months, which would also be 2,920 days, counting the years at 360 days each and the months 20 days each; moreover, the members of the series are based throughout upon the year of 360 days. His theory that the intervals of the series relate to the movements of the planet Venus is, as yet, a mere hypothesis, which needs further proof before it can demand acceptance; but his discovery of the methods of identifying the month symbols on the five plates now under consideration is important. Although I had noticed that most of the characters which he mentions are month symbols, I did not succeed in identifying all of them. According to his conclusion, which appears to be justified not only by the evidence he gives but by an additional fact that I shall, presently mention, there are four of these symbols in the upper row of the middle group of written characters on each plate and four in the upper and lower lines of the lower group on each plate (see, for example, Fig. 362). Each of these symbols (except three or four) has a black number attached to it which denotes the day of the month represented by the symbol. These months and days as given by Dr. Förstemann are as follows, the positions of the lines as here given corresponding with those of the plates: TABLE IV.--_Table showing months and days._ _____________________________________________________________________ | Month. Day. | Month. Day. | Month. Day. | Month. Day. |--------------+--------------+--------------+-------------- Plate 46 | 7 4 | 11 14 | 5 19 | 6 7 | 11 8 | 15 18 | 10 4 | 10 12 | 1 14 | 6 4 | 18 14 | 1 2 Plate 47 | 18 3 | 4 8 | 16 18 | 17 6 | 4 3 | 8 13 | 2 18 | 3(not 2) 6 | 10 10 | 15 3 | 9 8 | 9 16 Plate 48 | 10 17 | 15 7 | 9 12 | 10 20 | 15 2 | 1 7 | 13 17 | 14 5 | 3 7 | 7 17 | 2 2 | 2 10 Plate 49 | 3 11 | 8 1 | 2 6 | 2 14 | 7 16 | 12 6 | 6 11 | 6 19 | 14 6 | 18 16 | 13 1 | 13 9 Plate 50 | 14 10 | 18 20 | 13 5 | 13 13 | 18 15 | 5 20 | 17 10 | 17 18 | 6 20 | 11 10 | 5 15 | 6 3 ---------------------------------------------------------------------