On April 17, 1903, accompanied by Mr. Ellsworth Huntington, who had been appointed research assistant by the Carnegie Institution of Washington, I left Boston ; saile,d from New York, April 18 ; landed at Cherbourg, April 24; spent April '25 in Paris, April 28 in Vienna, and May 1 to 3 in Constantinople ; crossed the Black Sea to Batoum, May 4 to 8; and went thence by rail to Tiflis, May Io, and to Baku on the Caspian, where we arrived May 12. We crossed the Caspian on the night of May 22, and started from Krasnovodsk on the Central Asiatic Railway on the afternoon of May 24. After making short stops at Jebel, May 25, Kizil Arvat, May 26, and Bakharden, May 27, to examine the piedmont border of the great plains of Turkestan, we delayed at Askhabad, May 27 to June 9, long enough to make a five-day excursion, May 3o to June 4, into the Kopet Dagh, the mountain range along the Russo-Persian frontier. Leaving Askhabad by train the evening of June 9, we stopped at Merv, June 11 to 14, and Samarkand, June 16, and on June 17 reached Tashkent, where we remained three days. On June 20, accompanied by Mr. Huntington and Mr. Brovtzine, interpreter, I went by rail to Andizhan, where we stopped from June 2 I to June 27, to outfit for an excursion across the western ranges of the Tian Shan Mountains to Lake Issik Kul. We set out from Andizhan, June 27 ; spent two days, July 8 and 9, at Lake Son Kul ; reached Issik Kul on July 14 ; made a short trip into the mountains on its southwestern side, and then moved along the northern shore to the Russian settlement of Sazanovka. Here, on July 22, Mr. Huntington turned southward to begin his excursion to Kashgar, with the object of continuing over a large district of the high ranges the study of old moraines and terraces that we had begun together on the road to Issik Kul ; while I turned northward with Mr. Brovtzine and began my homeward journey. Vyernyi was reached July 26 ; we went in tarantass to Semipalatinsk, August 2 ; by boat down the Irtysh to Omsk, August 7 ; by train to St. Petersburg, August 15, where Mr. Brovtzine resided ; I continued by train to Ostend and London, August 17 ; and by steamer from Liverpool to Boston, August 20 to 28.
NATURE OF OBSERVATIONS.
In the geologic and physiographic reconnaissance of the region traversed, the chief subdivisions of Turkestan were visited in the following order : The Caspian Sea on the west, the central plains, and the mountains on the south and east.