20 The Arab Horse 



flowing into the Persian Gulf. About 

 two hundred miles below Mosul is 

 Bagdad, also on the Tigris River. The 

 Euphrates and Tigris nearly unite at 

 this point, but again separate to join 

 farther down, as already noted. Still 

 farther east, nearly parallel with the 

 Tigris is the western frontier of Persia. 



The line from Scanderoon to Mosul 

 may be taken as the northern boundary 

 of Arabia. The western frontier of 

 Persia, then the Persian Gulf and the 

 Gulf of Oman, mark its eastern boundary. 

 On the south lies the Indian Ocean. On 

 the west are the Red Sea, Palestine, and 

 Syria. From this rapid sketch one can 

 get an idea of the great area of the country. 

 Coming in at the northwestern comer 

 from the mountains of Asia Minor, the 

 Euphrates River crosses the upper end of 

 Arabia at a slant from northwest to south- 

 east, and the valley of the Euphrates 

 has for thousands of years been a most 

 important route of Communication be- 

 tween the Orient and western nations. 



