“Here it was that I saw the curious method of counting the soldiers which was adopted by the officers of Xerxes’s army.  As you may have read, ten thousand men were collected on a plain and made to stand close together in a mass nearly circular in shape.  Then a strong fence, with a wide gate to the west and another to the east, was built around them, and I was engaged in the constructing and strengthening of this fence.  When the fence was finished, the men were ordered to march out of the inclosure, and other soldiers marched in until it was again entirely filled.  This process was repeated until the whole army had been in the inclosure.  Thus they got rid of the labor of counting—­measuring the army instead of enumerating it.  But the results were not accurate.  I was greatly interested in the matter, and on three occasions I stood at the exit gate as the soldiers were coming out, and counted them, and the number never amounted to ten thousand.  One counting showed less than seven thousand, —­the men did not pack themselves together as closely as they were packed the first time,—­so I am confident that Xerxes’s army was not so large as it was reported to be.

“I became so much interested in the operations and constitution of this great horde of soldiers, attendants, animals, vehicles, and ships, that I went about looking at everything and getting all the information possible.  In these days I would have been a war correspondent, and I did act somewhat in that capacity; for I told Herodotus a great many of the facts which he put into his history of this great campaign.”

“Thee knew Herodotus?” his wife asked.

“Oh, yes; I worked with him a long time, and gave him information which helped him very much in writing his histories; but it would have been of greater advantage to the world if he had adhered more closely to my statements.  I told him what I discovered in regard to the enumeration of the army of Xerxes, but he wanted to make that army as big as he could, and he paid little attention to my remonstrances.

“Herodotus was only four years old when Xerxes invaded Greece, and of course all his knowledge concerning that expedition was second-hand, and by the time he began to write his history of the campaign there were very few people living who knew anything personally about it.  If he had not been a man so entirely wrapped up in his own work he would have wondered how any one of my apparent age could give him so much in the way of personal experience; but he seemed to have no suspicions, and, at any rate, asked no questions, and as I had a great desire that this remarkable historical event should be fully recorded, I helped him as much as I could.