Several pages of the manuscript were now occupied with minute statements of the writer's earlier disappointment in the objects of his singular research. The so-called magicians, accessible to the curiosity of European travellers, were either but ingenious jugglers, or produced effects that perplexed him by practices they had mechanically learned, but of the rationale of which they were as ignorant as himself. It was not till he had resided some considerable time in the East, and acquired a familiar knowledge of its current languages and the social habits of its various populations, that he became acquainted with men in whom he recognized earnest cultivators of the lore which tradition ascribes to the colleges and priesthoods of the ancient world,--men generally living remote from others, and seldom to be bribed by money to exhibit their marvels or divulge their secrets. In his intercourse with these sages, Sir Philip arrived at the conviction that there does exist an art of magic, distinct from the guile of the conjuror, and applying to certain latent powers and affinities in nature,--a philosophy akin to that which we receive in our acknowledged schools, inasmuch as it is equally based on experiment, and produces from definite causes definite results. In support of this startling proposition, Sir Philip now devoted more than half his volume to the details of various experiments, to the process and result of which he pledged his guarantee as the actual operator. As most of these alleged experiments appeared to me wholly incredible, and as all of them were unfamiliar to my practical experience, and could only be verified or falsified by tests that would require no inconsiderable amount of time and care, I passed with little heed over the pages in which they were set forth. I was impatient to arrive at that part of the manuscript which might throw light on the mystery in which my interest was the keenest. What were the links which connected the existence of Margrave with the history of Sir Philip Derval? Thus hurrying on, page after page, I suddenly, towards the end of the volume, came upon a name that arrested all my attention,--Haroun of Aleppo. He who has read the words addressed to mee in my trance may well conceive the thrill that shot through my heart when I came upon that name, and will readily understand how much more vividly my memory retains that part of the manuscript to which I now proceed, than all which had gone before. "It was," wrote Sir Philip, "in an obscure suburb of Aleppo that I at length met with the wonderful man from whom I have acquired a knowledge immeasurably more profound and occult than that which may be tested in the experiments to which I have devoted so large a share of this memoir. Haroun of Aleppo had, indeed, mastered every secret in nature which the nobler, or theurgic, magic seeks to fathom.