"The streets of Jerusalem were swept every day." Hence, "The moneys that were found in Jerusalem before those that bought cattle are always tenths. The moneys found in the mount of the Temple are profane or common. In Jerusalem on other days of the year they are common; but in the time of the feasts they are all tenths. But, saith R. Shemaia, Upon what reason is this? when the streets of Jerusalem are swept every day."
The Gloss writes thus; "They are always tenths: both in the time of the feasts, and in the time when there are no feasts. But moneys found in the mount of the Temple were common, even in the time of the feasts. For it is supposed, those moneys fell from them [or were lost], in the mount of the Temple; and thereupon they are common. But why were they tenths in Jerusalem in the time of the feasts? And why is it not said, That they had fallen from them there before the feast, as we say of the mount of the Temple? Because the streets of Jerusalem were swept every day; and if moneys had been lost there before the feast, they who swept the street had found them before. But the mount of the Temple had no need to be swept every day: for dirt and dust remained not there; because the mount was shelving: and moreover, it was not lawful for any to enter there with his shoes, or with dust on his feet."
I cannot omit what he saith besides: "Much of the flesh which was eaten at Jerusalem," in the time of the feasts, 'was of the second tithes.' For scarce any one tarried there until he had eaten all his tithes; but he gave the moneys of the tithes either to the poor, or to his friends in the city. And, for the most part, with the moneys of the tithes they bought their thank-offerings.