HEAR LECTURE BY YALE MAN Dr. Charles S. Schuchert Ad- dresses Geological Society Monday Dr. Charles S. Schuchert, emeritus professor of paleontology at Yale university, noted geologist and strat- igrapher and foremost authority on the paleogeography of North Amer- ica, addressed a large gathering of gelogists and men interested in the oil industry here Monday night at a meeting of the Shreveport Geographi- cal society. Doctor Schurchert outlined the trend on modern thought relating to the origin of petroleum deposits. He emphasized the importance of micro- organisms as a source of oil. Doctor Schurchert traced the de- velopment of the paleogeography of North America from earliest times to the present, emphasizing Llanoris, a huge ancient land mass which up to Cretaceous times, he said, occu- pied a large part of Mississippi, Lou- isiana and Texas. He pointed out how the denudation of this great mountain region supplied the great thickesses of materials that now make up the Ouachita and Arbuckle mountains of Oklahoma and Arkan- sas. He brought out the probable origin and age of the Louisiana salt deposits and the influence of Llanor-is upon the structural features now found in the oil fields of Arkansas, Louisiana and Texas. Dr. Schurchert has consented to deliver another address tonight in which he will discuss the fallacies of Wegener's continental displac- ment theory. This theory which has recently been widely discussed by gelogists, postulates the westward migration of the continents whereby the Americas have been separated from Europe and Africa and drifted westward to their present positions. In this theory Wegener endeavors to explain the origin of the Rocky mountains and the Andes mountains and many other features of the earth's geologic history. This meeting will be held tonight at 7:30 o'clock in the city hall.