338 



SCIENCE 



[N. S. Vol. XLIX. No. 1266 



correlation." Dr. Girty pointed out that the 

 lower part of the Bend Series of the Bend shale 

 proper belonged to the Mississippian, and the 

 upper part of the Bend, including the Marble 

 Palls limestone and the Smithwick shale, belonged 

 in the Pennsylvanian, with an unconformity be- 

 tween the Bend shale and the Marble Tails lime- 

 stone. 



At 8:15 in the evening a popular meeting was 

 held in the auditorium of Municipal Building, Dr. 

 I. C. White presiding. A large contingent of 

 townspeople were in attendance. The session was 

 addressed by Dr. David White, who made a plea 

 for the accumulation of petroleum reserves in for- 

 eign countries by the American companies so that 

 the future of the American oil industry would be 

 assured. Dr. J. A. XJdden read a paper on oil- 

 bearing formations in Texas, and Mr. M. L. 

 Puller, chief geologist of the Sun Company, deliv- 

 ered an illustrated lecture on China. 



On Priday morning papers were read by Dr. J. 

 W. Beede, of the bureau of economic geology of 

 the University of Texas, on "Notes on the struc- 

 tures and oil showings in the Red Rocks of Coke 

 County, Texas," by J. A. TJdden, on "Observa- 

 tions on two deep borings on the Balcones PaiJts, ' ' 

 and by M. L. Puller, "On the water problems of 

 the Bend series, and its effect on the future pro- 

 duction and flooding of oil sands. ' ' T. W. 

 Gregory, of the TJ. S. Puel Administration, read a 

 paper on "Gas conservation and distribution 

 under the TJ. S. Puel Administration. ' ' 



On Priday afternoon papers were read by W. L. 

 Matteson, giving ' ' A review of developments in the 

 central Texas oil fields, ' ' one by Walter R. Berger, 

 of the Empire Gas & Puel Company, on the "Ex- 

 tent and interpretation of the Hogshooter Gas 

 Sand," a paper by Dr. Raymond B. Moore, state 

 geologist of Kansas, on the "Correlation of the 

 Bend." Dr. Moore's conclusions were different 

 from those of Dr. Girty 's, the collections made by 

 Dr. Moore, for the Roxana Petroleum Company, 

 indicating that the lower Bend, or the Bend shale 

 proper, belongs to the Pennsylvania instead of the 

 Mississippian. Sidney Powers read a paper on the 

 "Geologic work of the American Expeditionary 

 Forces." The afternoon session was concluded by 

 a paper by Dr. Ed. Bloesch, on "Unconformities 

 in Oklahoma." 



Priday evening a banquet was tendered the asso- 

 ciation and the oil producers by the Dallas Cham- 

 ber of Commerce & Manufacturer's Association in 

 the junior ball room of the Adolphus Hotel. The 

 meeting was addressed by Ralph Arnold, who out- 



lined the policy of the federal government in the 

 matter of valuation and taxation of oil properties. 

 Mr. ArnoWs address was followed by two min- 

 ute talks by P. W. Shaw, David White, Chester 

 Washburne, Judge Greer, attorney for the Mag- 

 nolia Company, J. Edgar Pew, vice-president of the 

 Sun Company, and others. 



Saturday morning was devoted to a symposium 

 on valuation methods, Dr. I. C. White presiding. 

 Papers were read by Ralph Arnold on "Problems 

 of oil lease valuation," by Carl H. Beall on "Pac- 

 tors in the valuation of oil lands," by Professor 

 RosweU H. Johnson on "Decline curve methods," 

 and by E. W. Shaw, of the U. S. Geological Sur- 

 vey, on ' ' Valuation of gas properties. ' ' 



Saturday afternoon a paper was read by Mr. E. 

 H. SeUards, of the bureau of economic geology, 

 University of Texas, on "Structural conditions in 

 the oil fields of Bexar County, Texas." Dr. 

 Schuchert gave an illustrated lecture on contacts, 

 and Professor Roswell H. Johnson presented a 

 "Statistical investigation of the influence of 

 structure on oil and gas production in the Osage 

 Nations. ' ' 



The following papers were read by title: 

 D. P. MacDonald, "Notes on the stratigraphy of 

 Panama and Costa Rica. ' ' 

 Geo. E. Burton, ' ' Design for a log meter. ' ' 

 G. Sherburne Rogers, ' ' Oil field waters. ' ' 

 J. W. Bostiok, ' ' The Saratoga, Texas,, oil field. ' ' 

 Earl A. Trager, "Laboratory methods for the 

 examination of well cuttings." 



Robert T. Hill, "History of geologic explora- 

 tion in the southwest." 



After the reading of these papers, the business 

 meeting of the association was held, and the follow- 

 ing officers were elected for the coming year: 

 Dr. I. C. White, President. 



Irving Perrine, of Hutchinson, Kansas, Vice-presi- 

 dent. 

 Professor C. E. Decker, University of Oklahoma, 



Secretary-Treasurer. 

 Chas. H. Taylor, Editor. 



SCIENCE 



A Weekly Journal devoted to the AdvEincemcnt of 

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 ceedings of the American Association for 

 the Advancement of Science 



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