These are extemporaneous papers on areas of current interest and they are not intended for final publication at this time. Discussion is invited but consideration should be given to the fact that insufficient information is available on many of these for final conclusions to be reached.

(1) RICHARD W. SHERMAN, consulting geologist, Los Angeles: Newhall-Potrero Oil Field.

(2) E. B. NOBLE, chief geologist, Union Oil Company, Los Angeles: Rio Bravo Oil Field.

(3) JAN LAW, assistant petroleum engineer, Union Oil Company: A Possible Structural Interpretation of the Area of New Development at Rosecrans.

(4) ROBIN WILLIS, geologist, Basin Oil Company: (a) Northwestern Extension of the Long Beach Oil Field. (b) New Development at the Potrero Oil Field.

(5) F. M. ZIEGLER, petroleum engineer, Kern Oil Company: West Montebello Oil Field.

(6) E. J. BARTOSH, geologist, Bankline Oil Company: Eastern Extension of the Wilmington Oil Field.

(7) L. S. CHAMBERS: East Side Coalinga Extension.

(8) CLAYTON STEVENS and T. K. BOWLES, Ohio Oil Company, Bakersfield: Canal Oil Field.

(9) RICHARD G. REESE, Standard Oil Company of California, Los Angeles: New Development in the Southeastern Extension of the Torrance Oil Field.

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