Digital Commons Network^™

Ancient Maples Of The Central Washington Region, George F. Beck

All Faculty Scholarship for the College of the Sciences

When I began work on the petrified logs of the general Vantage area some 13 years ago, it became apparent at once that maple-like woods are commonplace in the main (Vantage) raft forest and slightly less abundant in two rooted units of the Yakima Canyon. So widely do these woods range throughout the structural variations found in modern maples that little success has attended the efforts to assign them to nominal species. The extremes can readily be established but few hints exist as to the boundaries between them.

An Investigation Of The Nature Of The Coefficients Of Entire Function, Marie Ann Philips

Mathematics & Statistics ETDs

The purpose of this study is to investigate the nature of the coefficients of certain power series. In particular, it is desired to know what characteristics the coefficients must possess in order that the series shall represent an entire function.

The Solubility Of Zinc Ethyl Xanthate In Water, Thomas M. Mckenzie

Bachelors Theses and Reports, 1928 - 1970

A determination of the solubility of zinc ethyl xanthate was attempted by measuring the refractive index of a saturated solution of that salt. The small increment in refractive index effected by adding zinc ethyl xanthate to water in saturation quantities rendered measurements difficult and of dubious accuracy.

Hydrogen Overvoltage Of Cadmium Bismuth And Antimony Bismuth Alloys, Edwin W. Stevens

Bachelors Theses and Reports, 1928 - 1970

A method to measure hydrogen overvoltage was devel­oped and checked with metals of known overvoltage. Alloys of bismuth and antimony and of bismuth and cad­mium were prepared and their overvoltages determined.

The Electrodeposition Of Copper-Cobalt Alloys, Richard L. Dunn

Bachelors Theses and Reports, 1928 - 1970

An attempt was made to deposit a 50:50 copper-cobalt alloy from various sulfate electrolytes. No true 50:50 alloy was obtained but various mixtures of cobalt and copper rich crystals were deposited.

Press Reports (1944), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Odor Report (1944), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Synthesis Of Dyes, Faith B. Cramer

Chemistry Honors Papers

This 14 page thesis examines the classification and preparation of dyes.

Calcium And Phosphorus Content Of Grasses At Different Stages Of Growth, G.F. Gastler, A.L. Moxon

Agricultural Experiment Station Chemistry Pamphlets (1943-1944)

The attached tables and graph show the calcium and phosphorus content of Western Wheat grass {Agropyron smithii) and Blue Grama grass (Bouteloua, gracilis) at different stages of growth. The percentages are calculated on an air dr-/ basis which would be comparable with the moisture content of very dry hay. Tne values, therefore, represent the approximate calcium and phosphorus levels in hay made from these grasses ~f they are cut at the stages indicated in the graph and tables.

Subject And Author Index Of The Technical Memorandums Of The U. S. National Advisory Committee For Aeronautics, Chrysler Engineering Library, Robert L. Bolin Depositor

United States National Aeronautics and Space Administration: Publications

The National Advisory Committee for Aeronautics (NACA) is a federal agency founded in 1915. It was a predecessor agency to National Aeronautics and Space Administration (NASA) which was formed in 1958.

Many of the reports listed here are available in full text through the TRAIL Technical Report Archive & Image Library. http://www.technicalreports.org/trail/search/ Many are also available from the NASA Technical Reports Server (NTRS). http://ntrs.nasa.gov/search.jsp

121 pp. + cover

Terminology Relating To The Occurrence, Behavior And Use Of Water In Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

The Monadnock Volume 18, Number 1, May 1944, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 18, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).

A Study Of Some Dehydrating And Infiltrating Agents, Monica Hoefs

Bachelors’ Theses

The ethyl-alcohol-xylol series produces a hardening and shrinking of the tissues. It has long been criticized for this reason.

Corona Discharge From Antenna Wire: A First Partial Report, Robert Katz

Robert Katz Publications

Purpose: 1. To examine the conditions for corona at the surface of a wire. This report is a theoretical discussion. No test procedure was used.

Conclusions:
1. Calculation of the gradient at the surface of the fixed-wire liaison antenna (bare copperweld, .040" diameter) on the B-17 airplane indicates that it is of the order of 200 times the gradient measured at the top generating voltmeter.
2. Further work will be done by the Special Devices Branch in an attempt to determine the conditions under which insulated wire goes into corona.

The Fifty-Seventh Session Of The Iowa Academy Of Science, April 15, 1944, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Two Newly Discovered Conifers, George F. Beck

All Faculty Scholarship for the College of the Sciences

Two genera of coniferous wood, apparently not listed among the Tertiary woods of the western states, have been recognized in the Percy Train collections from Rainbow Ridge, northwestern Nevada. These two, Tsuga (hemlock) and Chamaecyparis (cedar) bring up to 14 the genera of coniferous wood more or less certainly identified from the period and area in question.

Status Of Tertiary Woods Of The Western States Representing The Juglandaceae, George F. Beck

All Faculty Scholarship for the College of the Sciences

For many years there has been uncertainty concerning the generic status of some fossil leaves belonging without question to the walnut family as a whole. A review of the woods of Juglandaceae as they have appeared in Tertiary horizons of the western states has suggested which genera are present, and in what proportions their leaves (or other remains) might be expected to appear.

Drought, Its Effects And Measures Of Control In Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Fluorite Near Silver Bow, Montana, Charles V. Campbell

Bachelors Theses and Reports, 1928 - 1970

The wartime demand for fluorspar has caused renewed interest in fluorite deposits. Near Silver Bow, Montana, a deposit of massive, coarsely crystalline fluorspar, which has not been described in the literature, has attracted the atten­tion of the United States Geological Survey.

The Incompatibility Of Certain Alcohol And Soap Frothers, John Thomas Doherty

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to elucidate this phenomena of frother incompatibility, and to offer an explanation based upon several divergent lines of investigation. The research was limited to four common frothing agents, namely, pine oil, n-amyl alcohol, sodium oleate, and sodium lauryl sulphate (Dreft).

Production Of Iron-Tin Compacts By Powder Metallurgy And A Synopsis Of Their Principle Properties, Matt C. Andrews

Bachelors Theses and Reports, 1928 - 1970

This thesis is concerned primarily with the production of metal powder compacts of iron and tin. In producing these compacts, the effects of process­ing variables on some of the essential properties of the pellets made were investigated.

Hardness And Electrical Resistivity Of Copper-Iron Powder Metal Compacts, Fred A. Foyle Jr.

Bachelors Theses and Reports, 1928 - 1970

Although powder metallurgical methods have been used for years to fabricate tungsten and platinum, very little scientific data have been recorded until the beginning of this century. A large percentage of all commercial production at present is based upon past practice rather than upon scientific knowledge.

Methods Of Determining Porosity And Spatter Losses Of Arc Welds, Campbell W. F. Funk

Bachelors Theses and Reports, 1928 - 1970

The original objective of this project was to determine the effect of varying current intensity and electrode coating composition upon the spatter losses and porosity of arc welds made by alternating current. This subject was suggested by the Welding Research Council of the Engineering Foundation, which is a clearing house for welding research in order to avoid du­plication of work.

Age Hardening Of Copper Antimony Alloys, William R. Stern

Bachelors Theses and Reports, 1928 - 1970

A large number of alloys of varying percentages of copper and antimony were prepared. These alloys were treated in various ways which might be expected to produce age hardening. The effect of cold working was studied in the range where the alloys were malleable.

The Electrodeposition Of Iron-Manganese Alloys, Raymond D. Magorien

Bachelors Theses and Reports, 1928 - 1970

An electrodeposition of an iron-manganese alloy was made from the same conditions determined by previous re­search. Various addition agents were experimented with in an attempt to produce better conditions for electro-deposition. It was found advantageous to add small a­mounts of sodium lauryl sulfate and ammonium sulfite to the electrolyte.

An Isopach Map And Discussion Of The Marine Jurassic Of Western United Sates And Canada, John H. Ferry

Bachelors Theses and Reports, 1928 - 1970

Recent demands for petroleum to carry on the war effort have resulted in widespread prospecting in the northern Great Plains. Nearly all oil wells now drilled are of a depth to penetrate the marine Jurassic formations. It is known that these strata differ in thickness from place to place, but information of distribution, thickness, and lithology has not yet been compiled.

Torsional Deflection Of Miter-Type Lock Gates And Design Of The Diagonals, Edwin Gustav Hoffmann

Retrospective Theses and Dissertations

No abstract provided.

Abstract Papers

Journal of the Minnesota Academy of Science

No abstract provided.

Making Beats Visible, Carl J. Ulrich

Journal of the Minnesota Academy of Science

No abstract provided.

The Theory Of The Impulse Function For Oscillatory Mechanical And Electrical Systems, E. L. Hill

Journal of the Minnesota Academy of Science

No abstract provided.