One cross resembles the Hebrew letter T, there being no upper limb above the horizontal line. The Greek Cross is a cross where the four limbs are of equal length. The Latin Cross is that commonly used by Christians, the lower perpendicular limb being at least twice the length of the upper limb. The Cross of the Resurrection has a small banner attached to the upper portion, and the lowest perpendicular limb is much longer than the other three. The Cross of the Baptist has also a smaller scroll attached in like manner. The Patriarchal Cross, or Cross of the Holy Sepulchre, was a Greek Cross brought from the East by the Crusaders, also called the Archbishop's Cross and the Cross of Lorraine, and it has two transverse bars, one shorter and above the other. The Papal Cross is like the last, but has three transverse bars. The Greek Cross, known in mediæval times as St. Andrew's Cross, consists of slanting bars, instead of perpendicular and horizontal. There are other fanciful forms of cross, called the Cross of Jerusalem, having a small lip at the end of four equal limbs. The Irish Cross, or Cross of Iona, has a circle placed over the upper part of the cross. There are pectoral crosses more or less fanciful, worn as relics and ornaments of dress. THE DISCOVERY OF THE HOLY CROSS. When Constantine triumphed over his enemies by the miraculous power of the cross, he resolved to build a magnificent church in Jerusalem. His mother, St. Helena, then resolved, though eighty years old, to go herself to discover the identical cross there. On her arrival none could tell where it was, as the heathens, it was thought, purposely concealed it from the Christians by burying it under heaps of rubbish, building over it a temple of Venus, and placing there a statue of Jupiter. But Helena persevered, and pulled down these pagan erections, and at a great depth discovered three crosses, and also the nails used and the label or superscription. A difficulty then arose as to which of the three was the cross on which the Saviour was hung. To solve this doubt, Bishop Macarius suggested that the three crosses should be carried and shown to a sick and dying lady. Two of the crosses having produced no effect, the third, on being touched by her, cured the patient at once. St. Helena on this was delighted, and built a church on the spot where the cross was found, and she carried part of the cross to Constantinople to her son Constantine: another part was sent to the church at Rome. St. Helena died the same year, in 326. The board on which Christ's title was printed in red letters was about twelve inches long, and was sent to Rome. The main part of the cross was inclosed in a silver shrine, and given to be kept in Jerusalem by St. Macarius in the church which Helena and Constantine built there. St. Paulinus said that though chips were almost daily cut off from the cross and given to devout persons, yet the sacred wood suffered no diminution. And pieces were taken