"When the clock of the Mosk needs repairing, they are compelled, however reluctantly to employ a Frank. But in order to have a clean conscience in the commission of such an abominable piece of sacrilege as the admission upon the sacred premises, they adopt the following expedient. The mechanic selected being thoroughly purged from his uncleanness ablution . . . a certain formula of prayer and incantation is sung over him at the gate. This being satisfactorily concluded, he is considered as exorcised, not only of Christianity (or Judaism, as the case may be), but of humanity also; and is declared to be no longer a man but a donkey. He is then mounted upon the shoulders of the faithful, lest . . . the ground should be polluted by his footsteps; and being carried to the spot where his labours are required, he is set down upon matting within certain prescribed limits; and the operation being performed, he is carried back to the gate, and there, by certain other ceremonies, he is duly undonkeyfied and transmuted back into a man again."