the rocks of the natives to shelter from made in the mountain side are convenient, Aguilar says the most convenient way to make salt is here in use. I have a film I views of this place. Another film is between Tepetitlan and San Juan Guan an east of Tepetitlan towards San Antonio. Tehuacan Sunday, Aug 26. Shot exceedingly tires and sore at 6, started on our journey for Tepetitlan to Tehu- cacan at 7.30 am arrived at 11. Took many pictures between Tepetitlan and especially arrive San Antonio. The return journey gave us a good view of the Cretaceous rocks. The all of are down north a flat valley. Every way a level surface and small transitions. Not long ago geologically there was grading rolling but now the streams are again acting and carrying to lower levels the loose material of the former period. Aguilar says the eastern coast is rising