| Description | 1 letter from Greger, D. K. in Bartlesville, Oklhamoa to Dr. F. A. Bather, discussing a matter from a previous letter and that he is intending to send Bather anything interesting from a teacher friend's collection. Also informing that he and Dr. Schuchert were going to carry out a survey of the Pennsylvanian Province in Oklahoma, Arkansas and Texas which will be valuable geological data. |