When we think of devotion to the Sacred Heart, we think of Saint Margaret Mary. However, this devotion goes back further in history to Saint John Eudes, who wrote on the subject. And now we see that the Carthusians also were following this devotion before Saint Margaret Mary. A glance at these pages will show how justified was Dom Le Masson in claiming that the devotion revealed to St. Margaret Mary and made popular by her effotts was already an old one in the Carthusian Order. Dom Cyprien, before re-editing Dom Le Masson’s work, had already written on Lansperge the Carthusian and Devotion to the Sacred Heatt. Lansperge had, in fact, a special part in the propagation of the Devotion in the sixteenth century: but he only developed what was a tradition of long standing in his Order. Ludolph the Carthusian had already written before the middle of the fourteenth century in his Life of Christ those words which have been chosen for the opening pages of our present anthology; and from that time on the tradition remained unbroken. Nor was it confined to one Charterhouse, or to one Province of the Order. It is not surprising that many of the writers whose works are quoted belonged to the Rhineland Province, for the Charterhouse of Cologne, which had the reputation of displaying the greatest love for learning of all the Houses of the Order, had a marked influence on the Province. But the pen was not the only instrument used for spreading the Devotion. Not content with writing about the Devotion to the Heart of Jesus, these apostles of love contrived to engrave Its image on the very walls of stone with which their Monasteries were built. The escutcheon reproduced as a frontispiece is worthy of particular notice. It forms the key-stone of an arch at the Grande Chartreuse in that part of the old cloister which was built after the fire of 1473. A cross is seen rising out of a tomb, with the three nails, the rod and the sponge on a reed on the right, and on the left three dice, pincers and hammer, and a scourge. Above are the thirty pieces of silver, and the crown of thorns is hanging on the right arm of the cross. These arms of the Passion are common enough: what is exceptional in the shield of the Grande Chartreuse is the heart in the centre of the cross, with a large wound entirely penetrated by a lance. This has been reckoned as the oldest known carving of the Sacred Heart of Jesus. This work consists of thirty elevations to the Sacred Heart followed by a week devoted to the Sacred Heart. A section is devoted to prayers for all occasions, including preparation for death.