TRANSPORTATION AND COMMUNICATION 205 especially in the regions not traversed by railways, where the mule, donkey, camel or ox are commonly used. Bail- ways in Turkey, though limited in extent, are well con- structed, and normally would provide creditable service. (In November, 1923, the 360 mile all-rail journey from Constantinople to Angora required 36 hours.) Primitive animal transportation persists because it has no commercial competition. Still, the carrying costs of the former are so high that only a few products can stand the charges, which, nevertheless, are not unreason- able in consideration of the modes of travel. Many recent writers have overemphasized the present impor- tance of the camel-carried trade. The use of other ani- mals is frequently more economical. Furthermore, the camel is unable to compete with the railway in any more marked degree than the horse can compete with the auto- mobile. The two following illustrations are based upon Trebizond and Smyrna. Trebizond on the Black Sea coast owes its importance in history largely to its location as the terminus of the routes from the interior, mainly, the Persian caravan route. For the five year period, 1861-1865, the average yearly exports from Persia to this port amounted to $5,000,000, and the average imports destined for Persia amounted to $6,500,000. But for the period 1906-1910 inclusive the average annual exports dropped to $675,000 and the imports to $1,580,000. This remarkable decline, which is evident both in the value and in the quantity of goods, can be accounted for partly by favorable Russian commercial tariffs and special freight rates; but the de- ciding factor, to the detriment of Trebizond, was the building of the Transcaucasian railway with its main terminus at Batum, at the eastern, end of the Black Sea. Another illustration of the comparative inferiority of the camel is based on information furnished me in 1921