It will be gathered from the authorities of the costume of the Knights of the Temple and of the Hospital here noted, that when we picture to ourselves the knights on duty in the Holy Land or elsewhere, it should be in the armour of their period with the uniform surcoat of their order; but when we desire to realise their appearance as they were to be ordinarily seen, in chapel or refectory, or about their estates, or forming part of any ordinary scene of English life, it must be in the long cassock-like gown, with the cross on the shoulder, and the tonsured head, described in the above authorities, which would make their appearance resemble that of other religious persons. Other military orders, which never extended to England, were the order of TEUTONIC KNIGHTS, a fraternity similar to that of the Templars, but consisting entirely of Germans; and the order of OUR LADY OF MERCY, a Spanish knightly order in imitation of that of the Trinitarians. One other order of religious--the TRINITARIANS--we have reserved for this place, because while by their rule they are classed among the Augustinian orders, the object of their foundation gives them an affinity with the military orders, and their mode of pursuing that object makes their organisation and life resemble that of friars. The moral interest of their work, and its picturesque scenes and associations, lead us to give a little larger space to them than we have been able to do to most of the other orders. It is difficult for us to realise that the Mohammedan power seemed at one time not unlikely to subjugate all Europe; and that after their career of conquest had been arrested, the Mohammedan states of North Africa continued for centuries to be a scourge to the commerce of Europe, and a terror to the inhabitants of the coasts of the Mediterranean. They scoured the Great Sea with their galleys, and captured ships; they made descents on the coasts, and plundered towns and villages; and carried off the captives into slavery, and retreated in safety with their booty, to their African harbours. It is only within quite recent times that the last of these strongholds was destroyed by an English fleet, and that the Greek and Italian feluccas have ceased to fear the Algerine pirates. We have already briefly stated how the Hospitallers, after their original service was ended by the expulsion of the Christians from the Holy Land, settled first at Cyprus, then at Rhodes, and did good service as a bulwark against the Mohammedan progress; and lastly, as Knights of Malta, acted as the police of the Mediterranean, and did their best to oppose the piracies of the Corsairs. But in spite of the vigilance and prowess of the knights, many a merchant ship was captured, many a fishing village was sacked, and many captives, men, women, and children of all ranks of society, were carried off into slavery; and their slavery was a cruel one, exaggerated