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The electrical resistivities of polycrystalline samples of La, Pr, Nd, and Sm are reported in the temperature range 1.3 to 300 deg K. La exhibits a superconducting transition at 5.8 deg K. The curve for Pr has slope changes at 61 and 95 deg K. The Nd curve shows small jumps at 5 and 20 deg K. Sm shows slope changes at 14 and 106 deg K. (auth)

Recently a T = 1 resonance in the {Lambda}{pi} system called Y*{sub 1} has been observed with a mass of 1385 Mev. Two types of resonances have been predicted that might relate this observation to other elementary-particle interactions: (1) P 3/2 resonances in the {Lambda}{pi} and {Sigma}{pi} systems predicted by global symmetry corresponding to the (3/2, 3/2) resonance of the {pi}N system; (2) a spin-1/2 Y-{pi} resonance resulting from a bound state in the KN system. The position and width of the observed Y*{sub 1} resonance agree with both theories, but since the spin and parity have not yet been determined, it is impossible at present to distinguish between the two theoretical interpretations.

Article describes early territorial legislation requiring segregation in public schools in Oklahoma. Frank A. Balyeat discusses his own recollections of the time period, how some schools remained mixed, and the history of education on the frontier.

Article describes the life and career of Oklahoma's blind Senator, Thomas P. Gore. Monroe Billington illustrates Gore's upbringing, the injury that resulted in blindness, his marriage and family, politics, and speech delivery.

Article provides a biographical tribute to judge, lawyer, and newspaper editor Judge Baxter Taylor. Edward M. Box explores the highlights of Taylor's life and career.

Article provides a memorial address in honor of Judge Edgar S. Vaught, Anabell Gum, and Roy M. Johnson. Judge Orel Busby explores the romanticism of pioneer history in Oklahoma and the individuals that helped build the state.

Article introduces and includes a reprint of an extensive report written in 1905 by William P. Campbell about the founding and development of the Oklahoma Historical Society, lists of donors and gifts, newspaper publications, and collection items.

Article discusses the life of the Chitwood family on the Oklahoma frontier in Greer County. Adelia Clifton's adapted version of Maggie Chitwood Kilpatrick's manuscript includes stories cattle herding, conditions in the dugout house they lived in, and early education.

Article describes the life, education, and career of Delos K. Lonewolf, preacher and nephew to Chief Lone Wolf. Hugh D. Corwin discusses his upbringing, family, and religious activities, as well as the occasions he accompanied his uncle to Washington, D. C. to serve as an interpreter.

Article provides a continuation of the letters of William E. Burnett, an officer in the U.S. and later Confederate Army. In this third part of Raymond Estep's article, the removal of American Indians from Texas and the founding of Fort Cobb are highlighted.

Two types of electron polarization operators are surveyed. A three- vector operator is described that is appropriate for calculations involving plane- wave states. A four-vector operator is described that can be used for taking account of external electromagnetic fields. (T.F.H.)

Article discusses the meetings of delegates from the Cherokee, Choctaw, Chickasaw, Creek, Seminole, Kickapoo, Shawnee, Caddo, Wichita, Quapaw, Osage, Kiowa, and Pawnee tribes in council to discuss the issues of Indian Territory in the nineteenth century. A. M. Gibson includes a record of the proceedings by Cherokee Agent Pierce M. Butler and edited by newspaper editor William P. Ross.

Article discusses the temporary shelters pioneers constructed in the wake of the Oklahoma land runs. Veda Giezentanner elaborates on the process of creating sod houses and dugouts, the difficulties faced by early pioneers, and the ways settlers made a living.

Techniques are described for obtaining x ray diffraction information on active metals at high temperatures. One method is used to 1000 deg C with rare earths; the other method is used to 2200 deg C with tungsten, and to 1400 deg C with some f the higher melting rare earths. The latter approach permits simultaneous measurement of resistance of the specimens vs temperature and the diffraction pattern, which facilitates the characterizing of the high temperature forms of the metals. (auth)

Article discusses the events of the second battle of Cabin Creek between Union (or Federal) and Confederate forces during the Civil War. Marvin J. Hancock describes the battle maneuvers, the leaders of the brigades, and the impact of the Confederate victory.

The heat capacity of terbium metal was measured between 0.25 and 1.0 deg K. The high temperature data can be expressed as C = 28R x 10/sup -3/T/sup 2/ cal/ mole-deg. The data are compared with a Schottky formula for the heat capacity, assuming equal spacing between the nuclear hyperfine levels with an over-all spacing of beta = 0.45/ deg K, correspondlng to the high temperature expression above. The agreement is within experimental error except at the very lowest temperatures obtained. The effective field at the nucleus of the terbium atom can be calculated and is found to be H/sub eff/= 4 x 10/sup 6/ gauss. (auth)

Empirical study of cubic and quartic vibrational force constants for diatomic molecules shows them to be approximately exponential functions of internuclear distance. A family of curves is obtained, determined by the location of the bonded atoms in rows of the periodic table. Displacements between successive curves correspond closely to those in Badger's rule for quadratic force constants (for which the parameters are redetermined to accord with all data now available). Constants for excited electronic and ionic states appear on practically the same curves as those for the ground states. Predictions based on the diatomic correlations agree with the available cubic constants for bond stretching in polyatomic molecules, regardless of the type of bonding involved. Implications of these regularities are discussed. (auth)

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Article provides a history of the Fort Sill Apache Tribe and their ancestors, which included the Warm Spring Apache Tribe, the Chiricahua Apache Tribe, and the Nednai Apache Tribe. After detailing the history of these individual tribes, Benedict Jozhe describes how the Apaches were brought to Fort Sill and became prisoners of war until their eventual release.

The interaction Hamiltonian for the Coulomb exchange effect between conduction electrons and magnetic-shell electrons in rare-earth metals was derived from first principles. The approximations under which the interaction can be represented by the product of electron and ion spin vectors are exhibited. (auth)

Notes and Documents column including two last letters on the life of Lieutenant William E. Burnet, a review of the newly established Museum of the Great Plains, and a tribute to historian Carolyn Thomas Foreman.

Article provides a summary of the survey of historical materials related to the De Soto Expedition taken by the United States government, and the findings with regard to whether or not Hernando de Soto entered Oklahoma during his travels.

A back-reflection Laue camera with three rotation axes and three orthogonal translation axes is described. This camera allows the alignment of large single crystals with a precision of plus or minus 0.25 deg . The degree of single crystallinity of a specimen may be examined. In addition it is possible to accurately mark a crystal for subsequent utilization. (auth)