The sacred writings of the Zoroastrians, commonly called the Zend-Avesta, have for about a century occupied the attention of European scholars, and, thanks to the adventurous devotion of Anquetil Duperron, and the careful researches of Rask, Burnouf, Westergaard, Spiegel, and Haug, we have gradually been enabled to read and interpret what remains of the ancient language of the Persian religion. The problem was not an easy one, and had it not been for the new light which the science of language has shed on the laws of human speech, it would have been as impossible to Burnouf as it was to Hyde, the celebrated Professor of Hebrew and Arabic at Oxford, to interpret with grammatical accuracy the ancient remnants of Zoroaster's doctrine. How that problem was solved is well known to all who take an interest in the advancement of modern scholarship. It was as great an achievement as the deciphering of the cuneiform edicts of Darius; and no greater compliment could have been paid to Burnouf and his fellow-labourers than that scholars, without inclination to test their method, and without leisure to follow these indefatigable pioneers through all the intricate paths of their researches, should have pronounced the deciphering of the ancient Zend as well as of the ancient Persian of the Achæmenian period to be impossible, incredible, and next to miraculous. While the scholars of Europe are thus engaged in disinterring the ancient records of the religion of Zoroaster, it is of interest to learn what has become of that religion in those few settlements where it is still professed by small communities. Though every religion is of real and vital interest in its earliest state only, yet its later development too, with all its misunderstandings, faults, and corruptions, offers many an instructive lesson to the thoughtful student of history. Here is a religion, one of the most ancient of the world, once the state religion of the most powerful empire, driven away from its native soil, deprived of political influence, without even the prestige of a powerful or enlightened priesthood, and yet professed by a handful of exiles--men of wealth, intelligence, and moral worth in Western India--with an unhesitating fervour such as is seldom to be found in larger religious communities. It is well worth the serious consideration of the philosopher and the divine to discover, if possible, the spell by which this apparently effete religion continues to command the attachment of the enlightened Parsis of India, and makes them turn a deaf ear to the allurements of the Brahmanic worship and the earnest appeals of Christian missionaries. We believe that to many of our readers the two pamphlets, lately published by a distinguished member of the Parsi community, Mr. Dadabhai Naoroji, Professor of Guzerati at University College, London, will open many problems of a more than passing interest. One is a Paper read before the Liverpool Philomathic Society, 'On the