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Fossil Flora of the John Day Basin, Oregon
Frank Hall Knowlton
1902, Bulletin 204
For a number of years I have been gradually accumulating material for a thorough revision of the Tertiary floras of the Pacific slope. Fossil plants are known to occur at numerous points within this area, and their study and identification has already furnished valuable data bearing on the geological history...
Preliminary list of deep borings in the United States Part II: Nebraska-Wyoming
Nelson Horatio Darton
1902, Water Supply Paper 61
The wells and borings reported in the paper are all more than 400 feet in depth. The information concerning them has been obtained partly from replies to circular letters sent to all parts of the United States an  to lack of knowledge on the part of correspondents, and to the...