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324
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262
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105
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49
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30
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26
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26
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25
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25
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Texas Digital Newspaper Program
773
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439
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322
Harris and Eliza Kempner
256
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100
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81
Technical Report Archive and Image Library
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Petroleum-Engineering Study of the New Hope Oil Field, Franklin County, Texas
Report issued by the Bureau of Mines regarding studies on the modern petroleum engineering techniques used in Franklin County, Texas. Drilling methods, and analysis of the core samples are presented. This report includes tables, and graphs.
Date:
September 1949
Creator:
Carpenter, Charles B.; Anderson, Kenneth F. & Cook, Alton B.
Object Type:
Report
System:
The UNT Digital Library
Lead-Zinc-Silver in the Poughkeepsie District and Part of the Upper Uncompahgre and Mineral Point Districts, Ouray and San Juan Counties, Colorado
Report issued by the Bureau of Mines over mining districts in Colorado. As noted in the introduction, "in this report the physical features, climate, and ore deposits of the districts are described, and a brief history of mining and production of lead, zinc, and silver is given" (p. 4). This report includes tables, illustrations, and maps.
Date:
September 1949
Creator:
Hazen, Scott W., Jr.
Object Type:
Report
System:
The UNT Digital Library
Titanium Minerals in Central and Northeastern Florida
Report issued by the Bureau of Mines over titanium minerals in Florida. Evaluation of titanium samples obtained is presented. This report includes tables, and maps.
Date:
September 1949
Creator:
Thoenen, J. R. & Warne, J. D.
Object Type:
Report
System:
The UNT Digital Library
Storage of small grains and shelled corn on the farm.
Explains how to build storage facilities on the farm for small grains and shelled corn.
Date:
September 1949
Creator:
Shedd, C. K. (Claude Kedzie), 1884-
Object Type:
Book
System:
The UNT Digital Library
Dust Storms Come From the Poorer Lands.
Describes the different classifications of land and the effect soil erosion has on the quality of land and its future for crop production. Contains the results of an extensive study.
Date:
September 1949
Creator:
Finnell, H. H. (Henry Howard), b. 1894
Object Type:
Book
System:
The UNT Digital Library
How to Build a Farm Pond.
Describes the steps necessary to build a pond on farmland, including surveying land, testing the soil, building a spillway, and maintaining the pond.
Date:
September 1949
Creator:
Atkinson, Walter S., 1905-
Object Type:
Book
System:
The UNT Digital Library
[2012.201.B0317.0328]
Photograph is of two men wearing baseball uniforms. One man is holding a bat with both hands. Another man is leaning on a wall with one hand to the side of the man with the bat. Caption: "One of the most ardent rooters of the Oklahoma City Indians in little Lou Garrison, right, a grandson of Lee Coffer, the groundskeeper at local Texas league park."
Date:
September 9, 1949
Creator:
East, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
New Low Mass Isotopes of Emanation (Element 86)
Among the spallation products obtained from the 350-Mev proton bombardment of Th{sup 232} they have identified two gaseous alpha-emitters which apparently do not decay into any presently known alpha-decay chains. The half-lives observed for the decay of the alpha-activities are 23 minutes and 2.1 hours. These half-lives may be principally determined by an unknown amount of orbital electron capture. At least one alpha-emitting daughter (about 4 hours half-life) has been observed to grow from a gaseous parent, but it has not been determined whether it arises from alpha-decay or electron-capture. Since these gaseous atoms emit alpha-particles it is assumed that they are isotopes of element 86 (emanation or radon) rather than a lighter rare gas. if they were heavy isotopes such as Em{sup 221} or Em{sup 223}, both unknown, they would decay into known alpha-decay series, the neptunium and actinium series, respectively, and so would grow known short lived alpha-emitters which would have been detected. It thus appears reasonable that they must be lighter than the known emanation isotopes.
Date:
September 5, 1949
Creator:
Ghiorso, A.; Meinke, W. W. & Seaborg, G. T.
Object Type:
Report
System:
The UNT Digital Library
Systematics of Alpha-Radioactivity
Correlations of alpha-decay energies in terms of mass number and atomic number have been made for all of the alpha-emitting species now numbering over 100. For each element isotopes show increase in alpha-energy with decrease in mass number except in the region of 126 neutrons where there is an explainable reversal. This reversal has the effect of creating a region of relatively low alpha-energy and long half-life at low mass numbers for such elements as astatine, emanation, francium, and possibly higher elements as had been noted already for bismuth and polonium. Methods and examples of using alpha-decay data to define the energy surface in the heavy element region are discussed. The regularities in alpha-decay are used for predictions of nuclear properties including prediction of the beta-stable nuclides among the heavy elements. The half-life vs. energy correlations show that the even-even nuclides conform well with existing alpha-decay theory, but all nuclear types with odd nucleons show prohibited decay. The reason for this prohibition is not found in spin changes in the alpha-emission but in the assembly of the components of the alpha particle, and this theory is discussed further in terms of observations made on nuclides having two or more alpha-groups. …
Date:
September 12, 1949
Creator:
Perlman, I.; Ghiorso, A. & Seaborg, G. T.
Object Type:
Report
System:
The UNT Digital Library
Alpha-Decay in Isotopes of Atomic Number Less Than 83
Some time ago we started work in an attempt to observe alpha-particle decay in isotopes of atomic number less than 83. In the first experiments, thin targets of gold leaf were bombarded with 190-Mev deuterons in the 184-inch cyclotron. Two alpha-decay periods were observed in these targets; one of 0.7 minutes half-life and another of 4.3 minutes half-life. The alpha-particle energies were 5.7 and 5.2 Mev, respectively. Chemical separations proved that the 4.3-minute period is due to a gold isotope and suggested that the 0.7-minute period is due to a mercury isotope. The mass numbers of these new isotopes have not been determined. However, the results of excitation-functions in the production of the gold isotope by bombarding gold and platinum with protons suggest that its mass number lies in the range 185-188. The work on this isotope indicates that the alpha to electron capture branching ratio is of the order of magnitude of 10{sup -4}, and that positron activity accompanies the 4.3-minute alpha-period.
Date:
September 5, 1949
Creator:
Thompson, S. G.; Ghiorso, A.; Radmussen, J. O. & Seaborg, G. T.
Object Type:
Report
System:
The UNT Digital Library
Production for Mesons by X-rays
At the spring, 1949, meeting of the National Academy of Sciences(l) a preliminary account was given of some observations of mesons produced by the 335 Mev x-ray beam from the Berkeley synchrotron. The present paper is a progress report of this work; no claim is made for completeness, but sufficient new data are available to make publication at this time worth while, especially since some of the numerical results given in the earlier report require revision. The x-ray beam, produced by the impact of 335 Mev electrons on a 20 mil thick platinum target, has a width at half maximum of 0.0135 radian (about 1 inch at 6 feet from the target). In all but the earliest experiments the beam was further defined by a 1 inch hole in a lead block, then passed through a piece of carbon which served as the meson source. The x-ray intensity at one meter from the target was about 3500 r per hour (measured behind 1/8 inch of lead) under the best running conditions; the average was about half this. The actual exposures at the carbon meson source (6 feet from the target) ranged from 500 to 2000 r in the later runs. …
Date:
September 15, 1949
Creator:
McMillan, Edwin M.; Peterson, Jack & White, R. Stephen
Object Type:
Report
System:
The UNT Digital Library
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 175, Ed. 1 Friday, September 23, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 23, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 168, Ed. 1 Thursday, September 15, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 15, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 163, Ed. 1 Friday, September 9, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 9, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 160, Ed. 1 Tuesday, September 6, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 6, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 181, Ed. 1 Friday, September 30, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 30, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 169, Ed. 1 Friday, September 16, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 16, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 171, Ed. 1 Monday, September 19, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 19, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 174, Ed. 1 Thursday, September 22, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 22, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 178, Ed. 1 Tuesday, September 27, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 27, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Baylor County Banner (Seymour, Tex.), Vol. 54, No. 1, Ed. 1 Thursday, September 1, 1949
Weekly newspaper from Seymour, Texas that includes local, state, and national news along with advertising.
Date:
September 1, 1949
Creator:
Harrison, O. C.
Object Type:
Newspaper
System:
The Portal to Texas History
The Baylor County Banner (Seymour, Tex.), Vol. 54, No. 4, Ed. 1 Thursday, September 22, 1949
Weekly newspaper from Seymour, Texas that includes local, state, and national news along with advertising.
Date:
September 22, 1949
Creator:
Harrison, O. C.
Object Type:
Newspaper
System:
The Portal to Texas History
The Baylor County Banner (Seymour, Tex.), Vol. 54, No. 3, Ed. 1 Thursday, September 15, 1949
Weekly newspaper from Seymour, Texas that includes local, state, and national news along with advertising.
Date:
September 15, 1949
Creator:
Harrison, O. C.
Object Type:
Newspaper
System:
The Portal to Texas History
The Baylor County Banner (Seymour, Tex.), Vol. 54, No. 2, Ed. 1 Thursday, September 8, 1949
Weekly newspaper from Seymour, Texas that includes local, state, and national news along with advertising.
Date:
September 8, 1949
Creator:
Harrison, O. C.
Object Type:
Newspaper
System:
The Portal to Texas History