1837.] « Turkish work on Navigation. 811 



of Sunday belongs to Mercury, that of Monday to Jupiter, that of 

 Tuesday to Venus, that of Wednesday, to Saturnus, that of Thursday to 

 Sol, that of Friday to Luna, that of Saturday to Mars. They have 

 divided each day and night into twelve hours, and given to each of them 

 a planet. To find the names of these you must take the final letters of 

 them, and the initials of the days and hours beginning with Sunday, 

 and with the night of Sunday. 



For example, you add to the letter 11 (surkh-dehal) intended for the days ; 

 those of (dehal-surkh) ' intended for the nights : that is to say, the first 

 hour of Sunday belongs to Sol, the second to Venus, the third to Mer- 

 cury, the fourth to Luna, the fifth to Saturn, the sixth to Jupiter, the 

 seventh to Mars, the eighth to Sol, the ninth toVenus, the tenth to Mer- 

 cury, the eleventh to Luna, the twelfth to Saturnus. The first hour of 

 the night of Sunday belongs to Mercury, the second to Luna, the third 

 to Saturnus, the fourth to Jupiter, the fifth to Mars, the sixth to Sol, 

 the seventh to Venus, the eighth to Mercury, the ninth to Luna, the 

 tenth to Saturnus, the eleventh to Jupiter, the twelfth to Mars ; the hours 

 of the other days are to be made out in the same way. As soon as you 

 know the planet of the hour, you know also in what hours you may 

 put to sea, and in which not. By no means in the hour of Saturnus 

 which is unfortunate, but by all means in that of Jupiter, which is 

 fortunate ; not in those of Mars and Sol but in those of Luna and 

 Venus and Mercury. 



Some men of talent have comprised the rules of the days of the 

 week, on which navigation is to be undertaken in the following Persian 

 verses : 



u On Saturday and Monday not to sail, 

 O brother, to the East is sure the best. 

 Sunday and Friday, are the day which briDg, 

 Resentful, many evils from the west. 

 On Tuesday and on Wednesday, to the north. 

 Don't go ; take care, it is of no avail ; 

 And on a Thursday when the sun is rising, 

 T'wards the south, I beg you'll never sail." 



It has been already mentioned that the tract of sky which is 

 between the point of sunrise and north is called East, that between 



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