During a three years' stay that I made in Persia, while travelling about the country, and living in Tehran, Meshed, Ispahan, and Shiraz, I made a small collection of coins, and passed many pleasant hours in trying to decipher their legends, and reading in Persian histories what I was able to find about the kings and princes whose names occurred theron. Since I have come home, Mr. Poole, the Keeper of the Coins at the British Museum, has kindly looked over my collection, and, while pointing out what is new, has most courteously given me the benefit of his scholarship in clearing up many difficulties; to his various colleagues in the Medal Room I am also indebted for assistance and instruction.