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[Postcard, April 21, 1909]

Description: This document is a postcard from the Charles B. Moore Collection. It is addressed to Mary Moore who was located in Omaha, Nebraska. The author of the document is Alice G. In the document, Alice details that she has received Mary's letter and will write a better response soon. She also mentions that her and her family are doing better and that their gardens are growing nicely. She mentions that the weather has been exceptional with good rain, but notes that the winds are unusually strong. The front of the postcard is a photograph of the Presbyterian church in Gallatin, Tennessee.
Date: April 21, 1909
Partner: UNT Libraries Special Collections
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[Letter from S. A. Thornhill to Mary Moore, April 21, 1910]

Description: Letter from S. A. Thornhill to Mary Moore. She was glad to hear from them, she had imagined the worst and hopes they will have good health in Fort Worth. She talks about gardening, but it being too wet. She mentions the weather and how it has made her sick. Mary is going to list all of the friends that have died in 1910. John Crawford's obituary is included. She talks about Bud Thornhill's will. She is sorry for using scraps. She will try to finish the letter to send it off. She comments on the weather and how it is too wet to plant. She talks about her chickens and a hawk that tried to take her chickens. She gives some news about their friends in Tennessee. She hopes that Linnet will be alright and that her baby will comfort her. Claude and Time Jackson said they wanted to come visit her. She would like John to come also so they could have four generations in a picture. She talks about Russell Cole's body being moved after his wife died by his son. She mentions Wash Warren has been unwell. John Thornhill sent her some pictures.
Date: April 21, 1910
Creator: Thornhill, S. A.
Partner: UNT Libraries Special Collections
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Fire Tests of Building Columns

Description: Technical paper issued by the Bureau of Mines over studies conducted on fire resistance on building columns. As stated in the introduction, "the purpose of this investigation is to ascertain (1) the ultimate resistance against fire, of protected and unprotected columns as used in the interior of buildings; (2) their resistance against impact and sudden cooling from hose streams when in a highly heated condition" (p. 12). This paper includes tables, illustrations.
Date: April 21, 1921
Creator: Ingberg, S. H.; Griffin, H. K.; Robinson, W. C. & Wilson, R. E.
Partner: UNT Libraries Government Documents Department
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Wing-nacelle-propeller interference for wings of various spans force and pressure-distribution tests

Description: Report presents the results of an experimental investigation made in the NACA full-scale wind tunnel to determine the effect of wing span on nacelle-propeller characteristics and, reciprocally, the lateral extent of nacelle and propeller influence on a monoplane wing. The results provide a check on the validity of the previous research on nacelles and propellers with 15-foot-span wings tested in the 20-foot wind tunnel and reported in technical reports 415, 462, 505, 506, and 507.
Date: April 21, 1936
Creator: Robinson, Russell G. & Herrnstein, William H., Jr.
Partner: UNT Libraries Government Documents Department
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Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report

Description: Technical report abstract: Since UNH is a highly dissociated compound which ionizes to NO3 and (UO2), the latter ion being very weakly basic, a solution of pure UNH is quite acid (pH about 3). It is possible to titrate to a phenolphthalein and point with standard caustic solution and obtain a figure which represents the free acid plus the NO3 from the the UNH. However, titration of the free nitric acid alone in such a solution presents quite a problem. By precipitating and removing uranium from solution by means of potassium ferrocyanide, the residual free acid may be titrated directly by means of standard caustic using either methyl red or phenolphthalein indicators, with an error of less than 4%. A method is given to determine formic acid, should that acid be present in the mixture.
Date: April 21, 1944
Creator: Parlour, A. K. & Hammond, C. W.
Partner: UNT Libraries Government Documents Department
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The Influence of Operation on Tuballoy

Description: An attempt is made to estimate the influence of operation upon the mechanical properties of tubealloy. It is to be emphasized that the work is highly speculative, being base upon a set of judicious assumptions regarding the transport material within the metal and should not be used as a substitute for a set of well-planned experiments. The two principal effects considered are the hardening which results from the atomic displacement produced by the fission fragments and the changes in mechanical properties arising from the presence of the fission products. The principal conclusion to be drawn is that the disruption of the metal which accompanies operation takes place at at sufficiently high rate that it could readily cause serious changes in the mechanical properties of the slups. the reversal of the disruption resulting from thermal effects probably is sufficiently high to prevent serious embrittlement as a consequence of displacement through most of the volume of the slug if not at the surface. On the other hand, the migration of atoms also appears to be sufficiently high that the rare gas products may have time to diffuse to cracks and produce embrittlement.
Date: April 21, 1944
Creator: Seitz, Frederick, 1911-2008
Partner: UNT Libraries Government Documents Department
transcript

Duke Ellington Cavalcade, Parts 5 and 7

Description: In Part 5, Emerson Parker's introduction of "In the Shade of the Old Apple Tree" concludes, followed by the tune, along with "Solitude," "Clarinet Lament," "Ring Dem Bells," and "Hodge Podge" (introduction only, tune is in part 6). In Part 7, after station identification, Conover notes that Jerry Rhea will be joining the discussion soon, and reminisces about broadcasting during a stay at Walter Reed Army Medical Center while in military service; Conover also asks listeners to send comments on the program. Parker and Conover introduce "Tootin' Through the Roof," "Pitter Panther Patter," "Warm Valley," and "Do Nothing 'Til You Hear from Me."
Date: April 21, 1946
Duration: 28 minutes 42 seconds
Creator: Conover, Willis
Partner: UNT Music Library
transcript

Duke Ellington Cavalcade, Parts 6 and 8

Description: In Part 6, "Hodge Podge" is followed by Willis Conover and Emerson Parker introducing, "Braggin' in Brass," "Boy Meets Horn," "Mobile Bay, and "Night Song." In Part 8, "Do Nothing 'Til You Hear from Me" is followed by Cottontail, and Conover and Parker discussing "Take the A-Train," and "Just A-Sittin' and A-Rockin'." Conover talks about seeing Ellington live for the first time just a few months before, at Turner's Arena.
Date: April 21, 1946
Duration: 31 minutes 05 seconds
Creator: Conover, Willis
Partner: UNT Music Library
transcript

Duke Ellington Cavalcade, Parts 9 and 11

Description: In Part 9, Conover introduces Duke Ellington himself, along with Billy Strayhorn, to Emerson Parker, and interviews Ellington about his personnel, travel plans, and early recordings. In Part 11, the interview continues after selections from Ellington's Black, Brown & Beige Suite.
Date: April 21, 1946
Duration: 30 minutes 01 second
Creator: Conover, Willis
Partner: UNT Music Library
transcript

Duke Ellington Cavalcade, Parts 10 and 12

Description: In Part 10, the interview with Duke Ellington continues, up to the introduction of the Black, Brown & Beige Suite. In Part 12, the interview continues further, including discussion of Mercer Ellington. Conover speaks more about his stay at Walter Reed Army Medical Center, along with fellow broadcaster Mark Austad (later known as Mark Evans). Jerry Rhea also speaks. Conover credits Frank Turner as the photographer for the evening (images are also in this collection), and notes that those in attendance included Ellington, Billy Strayhorn, Jerry Rhea with his wife and sister, Oscar Pettiford, and Emerson Parker. The recording closes with "Ring Dem Bells."
Date: April 21, 1946
Duration: 30 minutes 56 seconds
Creator: Conover, Willis
Partner: UNT Music Library
transcript

Hazel and Harold, April 21, 1946

Description: Recording of a radio comedy, Hazel and Harold, featuring Willis Conover as Harold and Nathalie Sherman as Hazel. The program is reminiscent of the early Ethel and Albert programs he did with Peg Lynch at WTBO in Cumberland, Maryland, before the Second World War.
Date: April 21, 1946
Duration: 15 minutes 33 seconds
Creator: Conover, Willis
Partner: UNT Music Library
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Flight Tests to Determine the Drag of Fin-Stabilized Parabolic Bodies at Transonic and Supersonic Speeds

Description: Report presenting testing on parabolic bodies of revolution of two fineness ratios in the transonic and supersonic range. One had a body fineness ratio of 7.87 and one had a ratio of 12 and were tested under different Mach number ranges. Experimental results and drag estimates of various portions of the body are provided.
Date: April 21, 1948
Creator: Alexander, Sidney R.; Chauvin, Leo T. & Rumsey, Charles B.
Partner: UNT Libraries Government Documents Department
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Performance of Experimental Turbojet-Engine Combustor 1: Performance of a One-Eighth Segment of an Experimental Turbojet-Engine Combustor

Description: Report presenting an investigation of a one-eighth segment of an annular combustor suitable for use as a component of an experimental turbojet engine. Due to the small space available for the combustor, a special design involving a minimum of obstructions in the combustion chamber was created. Results regarding the temperature-rise efficiency, total-pressure loss, and exhaust-gas temperature variation for several simulated engine operating conditions are provided.
Date: April 21, 1948
Creator: Hill, Francis U. & Mark, Herman
Partner: UNT Libraries Government Documents Department
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Studies with Colloids Containing Radioisotopes of Yttrium, Zirconium, Columbium, and Lanthanum: 1. The Chemical Principles and Methods Involved in Preparation of Colloids of Yttrium, Zirconium, Columbium, and Lanthanum

Description: For a number of investigations, including fundamental studies of radiation effects on living tissues and therapeutic utilization of radioisotopes, it is valuable to have methods for the selective localization of radioisotopes in certain tissues. Finely dispersed anhydrous chromic phosphate has been found useful by Jones, Wrobel, and Lyons in selectively irradiating the liver and spleen with p{sup 32} beta particles. The present studies, reported in this and the following communication, are concerned with methods for controlled selective localization of colloids (incorporating radioisotopes) in the liver, spleen, or bone marrow, and with an analysis of some of the factors involved in the phenomenon of localization.
Date: April 21, 1948
Creator: Gofman, John W.
Partner: UNT Libraries Government Documents Department
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Studies with Colloids Containing Radioisotopes of Yttrium, Zirconium, Columbium and Lanthaum: 2. The Controlled Selective Localization of Radioisotopes of Yttrium, Zirconium, Columbium in the Bone Marrow, Liver and Spleen

Description: Several workers have shown that certain colloidally dispered materials are removed from the blood stream by the liver and spleen. Jones, Wrobel, and Lyons have utilized suspensions of anhydrous chromic phosphate for the selective irradiation of the liver and spleen with p{sup 32} beta particles. Gersh demonstrated that colloidal calcium phosphate is taken up by the liver and spleen. He stressed the failure of bone marrow phagocytes to take up this colloid in rats and dogs (though he referred to possible uptake in the marrow of rabbits under special conditions), and commented on the relative 'refractoriness' in general of the bono marrow as compared with liver and spleen with respect to the uptake of colloidal dyes from the blood stream. Some histological data indicate that 'Thorotrast' (a colloidal thorium dioxide preparation) is deposited in the bone marrow as well as in the liver and spleen, but no quantitative data as to the relative distribution are available. In the preceding communication the methods for the preparation of colloids incorporating radioisotopes of yttrium, columbium, and zirconium were given. The present studies are concerned with the localization of such colloids primarily in the bone marrow or primarily in the spleen and liver, with an analysis of some of the factors which may be responsible for differences in localization.
Date: April 21, 1948
Creator: Dobson, E.L.; Gofman, J.W.; Jones, H.B.; Kelly, Lola S. & Walker, L.
Partner: UNT Libraries Government Documents Department
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Aerodynamic characteristics of a wing with quarter-chord line swept back 35 degrees, aspect ratio 4, taper ratio 0.6, and NACA 65A006 airfoil section: Transonic-bump method

Description: From Introduction: "This paper presents the results of the investigation of wing-alone and wing-fuselage combinations employing a wing with the quarter-chord line swept back 35^o, aspect ratio 4, taper ratio 0.6, and NACA 65A006 airfoil section."
Date: April 21, 1949
Creator: Sleeman, William C., Jr. & Becht, Robert E.
Partner: UNT Libraries Government Documents Department
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