In compiling the following pages I have had access to certain sources of official information, the nature of which I am not at liberty to specify further. I have used these freely in such chapters of this book as deal with recent and contemporary events in Turkey or in Germany in connection with Turkey: the chapter, for instance, entitled "Deutschland ber Allah," is based very largely on such documents. I have tried to be discriminating in their use, and have not, as far as I am aware, stated anything derived from them as a fact, for which I had not found corroborative evidence. With regard to the Armenian massacres I have drawn largely on the testimony collected by Lord Bryce, on that brought forward by Mr. Arnold J. Toynbee in his pamphlet The Murder of a Nation, The Murderous Tyranny of the Turks and on the pamphlet by Dr. Martin Niepage, called The Horrors of Aleppo.