The first trace of this Syriac version was found in May, 1868. On the sixth of that month, Professor Bickell of Münster, the diligent promoter of Syrian philology, wrote to tell me that he had heard from a Syrian Archdeacon from Urumia, Jochannân bar Bâbisch, who had visited Münster in the spring to collect alms, and had returned there again in May, that, some time previously, several Chaldæan priests who had been visiting the Christians of St. Thomas in India, had brought back with them some copies of this Syriac translation, and had given them to the Catholic Patriarch in Elkosh (near Mossul). He had received one of these. Though the news appeared so unbelievable and the character of the Syrian priest little calculated to inspire confidence in his statements, it still seemed to me of sufficient importance for me to ask my friends to make further inquiries in India, where other copies ought still to be in existence. Even were the result but a decided negative, it would be a gain to science. These inquiries had no effect in proving the truth of the archdeacon’s assertions; but, at the same time, they did not disprove them. It would of course have been more natural to make inquiries among the Syrians. But from want of friends and from other causes, which I shall mention further on, I could hardly hope for any certain results, and least of all, that if the MS. really existed, I could obtain it, or a copy of it. The track thus appeared to be lost, and not possible to be followed up, when, after the lapse of nearly two years, Professor Bickell, in a letter of February 22, 1870, drew my attention to the fact that the Chaldæan Patriarch, Jussuf Audo, who, according to Jochannân bar Bâbisch, was in possession of that translation, was now in Rome, as member of the Council summoned by the Pope. Through Dr. Schöll of Weimar, then in Rome, and one Italian savant, Signor Ignazio Guidi, I was put into communication with the Patriarch, and with another Chaldæan priest, Bishop Qajjât, and received communications, the latest of June 11, 1870, which indeed proved the information of Jochannân bar Bâbisch to be entirely untrustworthy; but at the same time pointed to the probable existence of a MS. of the Syriac translation at Mardîn. I did not wait for the last letters, which might have saved the discoverer much trouble, but might also have frustrated the whole inquiry; but, as soon as I had learnt the place where the MS. might be, I wrote; May 6, 1870, exactly two years after the first trace of the MS. had been brought to light, to my former pupil and friend, Dr. Albert Socin of Basle, who was then in Asia on a scientific expedition, begging him to make the most careful inquiries in Mardîn about this MS., and especially to satisfy himself whether it had been derived from the Arabian translation, or was independent of and older than the latter. We will let Dr. Socin, the discoverer of the MS., tell us himself of his efforts and their results.