Photograph taken for a story in the Oklahoma Times newspaper. Caption: "The Okla. City Indians will have Keith Davey, a mighty mite of a righthanded pitcher, as their 1949 batboy."

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph of an burning oil tanker on a highway, used for a story in the Daily Oklahoman newspaper. An unidentified man is on the right of the image, watching the fire. There are crop marks near the top and bottom of the photo. Caption: "A spectacular blaze, which consumed 3,024 gallons of crude oil and damaged a new trailer truck, tied up traffic for more than two hours Tuesday on the Guthrie cut-off near Bradbury corners."

Daily newspaper from Sweetwater, Texas that includes local, state and national news along with advertising.

Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.

Weekly student newspaper from Howard Payne College in Brownwood, Texas that includes local, state and campus news along with advertising.

Photograph used for a story in the Oklahoma Times newspaper. Caption: "The Sign of the Moon," is the Hawaiian dance; Mrs. Ed L. Ryan, 1613 NE Park, is the dancer. She learned to dance in Hawaii, her native land before she married an ASmerican."

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.

Photograph of the Sons of the Pioneers performing behind a microphone.

Photograph of the Sons of the Pioneers in studio at WBAP.

Letter from A. H. Blackshear, Jr. To Isaac Herbert Kempner, Jr. mentioning about the letter of March 22nd enclosing life insurance premium receipt on policy issued by the Southwestern Life Insurance Company which has been placed with his policies for safekeeping.

Daily newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Letter from Eugene B. Smith to Isaac H. Kempner declining the latter's invitation.

Letter from L. R. C. Towles to Isaac H. Kempner declining the latter's invitation.

Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.

Weekly newspaper from Taft, Texas that includes local, state, and national news along with advertising.

Daily newspaper from Coleman, Texas that includes local, state, and national news along with advertising.

Weekly newspaper from Odem, Texas that includes local, state, and national news along with advertising.

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.

The cloud chamber is a means of observing the path of ionizing radiation. It does not reveal the radiation directly, but gives a visible trail of the path along which the radiation has traveled. The trail is formed by vapor condensing upon pairs of ions remaining after an ionizing particle has passed through the medium. The mutual interaction among rays, atoms, nuclei, and particles, can be studied and measured with the aid of vapor trails. Measurements of changes in direction and range as recorded on the photographs may be interpreted in terms of changes in momentum and energy of the particles in these reactions. To obtain a precision measurement is difficult with a cloud chamber. The dependence of the apparatus upon a sudden gas expansion is certain to create distortions resulting from turbulence. Furthermore, since any radiation is subject to variations, precision measurements can be obtained only be the collection of numerous observations for statistical analysis. This document details the design, operation, and limitations of cloud chambers.

Memorandum presenting an investigation of the effects of stator cone angle and tip leakage on turbine performance. A single-stage turbine with 40-percent reaction was operated with two stators and two stationary shrouds. The turbine was operated at an entrance temperature of 660 degrees R with total-pressure ratios from 1.25 to 3.70 and equivalent mean blade speeds from 166 to 655 feet per second.