champagne. See souvenir card. Was told that the dinner lost half of the due to the Governor of Oaxaca cost me $35 =. Arrived at Tehuacan at 3. Had dinner at the Governors house and left for Japostitlan at 5.30, Arrived after a long night carriage ride of Japostitlan amidst music and fireworks at 10.30. Had supper from 11.30 to 12.15 on the return. Riding with Aguilera he told me the valley of Tehuacan had beneath the rocks a thin layer of Tertiary and then sandstone the age of which maybe Eocene or Oligocene. These beds lie in a horseshoe. Over these once lay the great Tertiary series now seen along both sides of the valley and which are said to be at least 1000 meters thick. On the west this series appears in the Middle Cutaceras and on the east on the Arcadian. Here this is a fault and a throw of about 300 meters. The Cretaceous series lies in long folds. Against the Andes of the Pacific has been shown the entire Orogenic series. The general structure is block like faulting and low anticlinorium.