To: Patrol (lights in cars. En route to Mexico. Aug 17 - Friday. Slept fairly well and got up at 6-30. Shortly after crossed the Arkansas at Little Rock. The river was ornamented in flood and red as I mistook it for the Red River. Later before arriving at Texarcana we crossed the Red River which also was in flood. The water was frothing a muddy, thick ooze, and a brick red (Palestine Texas). In looking at the grand beds of the south is a very local red for from two to four feet beneath the surface when the color soon changes to that of the underlying strata. The vegetation is deciduous and yet this coloration is not charged the red clay. Brooke says that the iron in the famous form is only found at the level of permanent water. Here the rocks of a continuing deposits are of a green-black color. In the upper soil layers are found pyrite and marcasite. The strata beds here are well marked. The country flat to olivine underlying, and its fronts with considerable clay and blue jays. Cotton is much grown with corn about Texarcana.