3 Shortz Era entries found. Click any date for context.
See the dictionary definition for SHALES.
|Thursday, December 31, 2009||52D||Some are bituminous||Frank Longo|
|Sunday, June 2, 2002||91D||Synthetic fuel sources||Frank Longo|
|Sunday, April 20, 1997||22A||Terrigenous rocks||Charles M. Deber|
10 results for SHALES from older pre-Shortz puzzles.
|Sunday, June 3, 1979||50D||Oil-producing rocks||Bert H. Kruse||Maleska|
|Tuesday, January 3, 1978||43D||Fissile rocks||H. Hastings Reddall||Maleska|
|Sunday, October 24, 1976||79D||Layered rocks||John Willig||Weng|
|Thursday, September 26, 1974||42A||Fissile rocks||Anthony B. Canning||Weng|
|Sunday, April 8, 1973||48A||Fissile rocks||Ronald Hirschfeld||Weng|
|Thursday, June 21, 1956||15D||Fine-grained rocks.||Sidney Lambert||Farrar|
|Wednesday, May 23, 1956||45A||Fissile rocks.||S. A. Kay||Farrar|
|Sunday, May 9, 1954||74A||Fine-grained rocks.||Sidney Lambert||Farrar|
|Sunday, May 14, 1950||108D||Layers of rock.||Jack Luzzatto||Farrar|
|Sunday, January 16, 1949||82D||Fissile rocks.||Harold T. Bers||Farrar|