N January, 1937, the Geographical Review published my article "Eastern Chiapas," a description of a little-known part of this southern Mexican state. In the ten years that have passed changes have been made; in particular, communications have been vastly improved. Accelerated by the war, construction of the Pan-American Highway has progressed through to Comitan, Chiapas. The road follows, in part, old highways from Oaxaca City. It is now possible to travel the I200 kilometers from Mexico City to Comitfn in three days, a journey that used to take six days by train and bus. The portion of the highway that traverses the mountains of Chiapas is unsurfaced and during the rains is subject to landslides and mudholing, but the condition of the road is more than compensated by the magnificent scenery, especially in the stretch from Chiapa de Corzo to San Crist6bal las Casas. Here the highway rises sharply in long zigzags from 2000 feet to 8000 feet, carrying one from hot, dry, semiarid country into cool, temperate, pine-covered mountains, an exhilarating change. The greatest improvement in communications is in air services. Airfields have been built throughout the state, and two local companies now provide flights to all parts of Chiapas. These companies are based at Tuxtla Gutierrez, the capital, where they connect with the Companfia Mexicana de Aviaci6n, S. A., Mexican subsidiary of Pan American Airways. The savings in time are very great. For example, it formerly took four long days, one by bus and three on horseback, to travel from Tuxtla Gutierez over the mountains to Ocosingo. Today the trip is made by plane in one hour. It is cheaper to fly than to hire horses and travel overland.