Called also the Aighúri. It is similar to the foregoing, except that this cycle is based on the series of 12. They reckon their years and days after the same manner, but it is said that some astronomical tables also employ the series of 10. The commencement of their era is unknown. Abu Raihán (Albirúni) says* that the Turks add nine to the incomplete Syromacedonian years and divide it by 12: and in whatever animal the remainder terminates, counting from the Sign of the Mouse, the year is named therefrom. But weighed in the balance of experiment, this is found wanting by one year. The intention, undoubtedly, is to carry the remainder down the animal signs of the series, and, beginning from the Mouse, to adopt the name of the animal in which it terminates. Although the commencement of the era is unknown, yet we gather sufficient informa­tion regarding the year of the cycle and its name. And if 7 years be added to the imperfect years of the Maliki era, dividing by 12, whatever remains is the year of the animal reckoning from the Mouse. This will prove correct according* to the following series.