"Next in renown were those precious relics, the tears of the Saviour. By whom and in what manner they were preserved, the pilgrim did not enquire. Their genuineness was vouched by the Christians of the Holy Land, and that was sufficient. Tears of the Virgin Mary, and tears of St. Peter, were also to be had, carefully enclosed in little caskets, which the pious might wear in their bosoms. After the tears, the next most precious relics were drops of the blood of Jesus and the martyrs, and the milk of the Virgin Mary. Hair and toe-nails were also in great repute, and were sold at extravagant prices. Thousands of pilgrims annually visited Palestine in the eleventh and twelfth centuries, to purchase pretended relics for the home market. The majority of them had no other means of subsistence than the profits thus obtained. Many a nail, cut from the filthy foot of some unscrupulous ecclesiastic, was sold at a diamond's price, within six months after its severance from its parent toe, upon the supposition that it had once belonged to a saint or an apostle. Peter's toes were uncommonly prolific, for there were nails enough in Europe, at the time of the Council of Clermont, to have filled a sack, all of which were devoutly believed to have grown on the sacred feet of that great apostle. Some of them are still shown in the cathedral of Aix-la-Chapelle. The pious come from a distance of a hundred German miles to feast their eyes upon them."[28] While some of these relics enumerated by Mackay seem to be such apparent frauds that none could credit them, they were surpassed in audacity by one offered for sale at a monastery in Jerusalem. Here was presented to the prospective buyers one of the fingers of the Holy Ghost.[29] In addition to the popular relics already noted, an extensive and lucrative trade was carried on in iron filings from the chains with which, it was claimed, Peter and Paul were bound. These filings were deemed by Pope Gregory I as efficacious in healing as were the bones of saints or martyrs.[30] [Illustration: CURE THROUGH THE INTERCESSION OF A HEALING SAINT]