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Articles 292171 - 292200 of 294573

Full-Text Articles in Physical Sciences and Mathematics

Spectroscopic And Quantitative Determination Of Platinum, John W. Manning Iii May 1940

Spectroscopic And Quantitative Determination Of Platinum, John W. Manning Iii

Chemistry Honors Papers

This 7 page thesis examines quantitative method and spectroscopic analysis of platinum.


Historical Background And Settlement Of Baxter Springs, Kansas, Ruth Rodman St. Clair May 1940

Historical Background And Settlement Of Baxter Springs, Kansas, Ruth Rodman St. Clair

Electronic Theses & Dissertations

This is a study of the historical background and the settlement of Baxter Springs, which is located in the southeastern corner of Kansas, one mile from the Oklahoma line and six miles from the Missouri line. It was one of the first settlements in Cherokee County and the first frontier town near the southern boundary line of Kansas.

The town was named tor John L. Baxter who settled upon the present town site in 1849.

During the civil war, a military post for the Union Army was maintained at Baxter Springs. The principal engagement of the war, in this section …


A Study Of Fermat's Last Theorem., Jerome L. Krumpelman May 1940

A Study Of Fermat's Last Theorem., Jerome L. Krumpelman

Electronic Theses and Dissertations

This work is intended primarily for the student of mathematics who may not necessarily wish to delve into the complete theory of the problem. but who may wish to get a picture of the work necessary to study and understand it. For a complete history of the problem until 1919, refer to Chapter XXVI of Dickson's History of the Theory of Numbers, II, and for the work primarily connected with Irregular Cyclotomic Fields and Fermat's Last Theorem through part of 1927, refer to Algebraic Numbers, II, National Research Council Bulletin, # 62. For a Short presentation of the problem refer …


Fifty-Fourth Annual Meeting Of The Iowa Academy Of Science And The Ninth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1940, Iowa Academy Of Science Apr 1940

Fifty-Fourth Annual Meeting Of The Iowa Academy Of Science And The Ninth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1940, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.


An Attempt To Devise A Method For The Determination Of The Concentration Gradient In And Electrolyte Between Two Electrodes, Joseph J. Garvey Apr 1940

An Attempt To Devise A Method For The Determination Of The Concentration Gradient In And Electrolyte Between Two Electrodes, Joseph J. Garvey

Bachelors’ Theses

Nowhere in the literature of chemistry can there he found a practical method for the determination of the concentration changes in a solution when subjected to an electric current. It is the purpose of this thesis to devise a method for this determination.


Front Matter Apr 1940

Front Matter

Journal of the Minnesota Academy of Science

No abstract provided.


Applications Of Artificial Radioactivity To Problems In Chemistry, D. E. Hull Apr 1940

Applications Of Artificial Radioactivity To Problems In Chemistry, D. E. Hull

Journal of the Minnesota Academy of Science

No abstract provided.


The Biological Use Of The Stable Mass Isotopes, Allan Hemingway Apr 1940

The Biological Use Of The Stable Mass Isotopes, Allan Hemingway

Journal of the Minnesota Academy of Science

No abstract provided.


Threshold Values For The Perception Of The Direction Of Frequency Modulation, Abe Pepinsky Apr 1940

Threshold Values For The Perception Of The Direction Of Frequency Modulation, Abe Pepinsky

Journal of the Minnesota Academy of Science

No abstract provided.


Abstract Papers Apr 1940

Abstract Papers

Journal of the Minnesota Academy of Science

No abstract provided.


Back Matter Apr 1940

Back Matter

Journal of the Minnesota Academy of Science

No abstract provided.


The Existence Theorem Of Ordinary Differential Equations, Harris J. Dark Apr 1940

The Existence Theorem Of Ordinary Differential Equations, Harris J. Dark

Master's Theses

There are a great many devices for solving differential equations of certain special forms. But there is a large number of classes of differential equations that are not included in these special forms and cannot be integrated by quadratures or other purely elementary methods. When mathematicians were forced to abandon their cherished hope of finding a method for expressing the solution of every differential equation in terms of a finite number of known functions or their integrals they turned their attention to the question of whether a differential equation in general had a solution at all, and, if so, of …


Characteristics Of Spectrographic Plates In The Ultra Violet Region Between 2300-2000a, R. G. Beck, L. Lundberg, Elmer S. Miller Apr 1940

Characteristics Of Spectrographic Plates In The Ultra Violet Region Between 2300-2000a, R. G. Beck, L. Lundberg, Elmer S. Miller

Journal of the Minnesota Academy of Science

No abstract provided.


Report On Pole Canyon Area And Area Three Miles Southeast Of Jefferson Island, Ted Newcombe Jan 1940

Report On Pole Canyon Area And Area Three Miles Southeast Of Jefferson Island, Ted Newcombe

Bachelors Theses and Reports, 1928 - 1970

The primary purpose of the trip was to acquaint the students with some of the problems that occur in the field, and also how to make geologic maps of sections, outcrops, faults, and other geologic features of the earths surface.


The Geology Of The Limespur-Sappington Area, Frank W. Archibald Jan 1940

The Geology Of The Limespur-Sappington Area, Frank W. Archibald

Bachelors Theses and Reports, 1928 - 1970

The area to be surveyed was divided up into sections add each crew of three or four members was assigned one of these sections. The first two days were spent in studying and mapping the geologic section in the South Boulder Canyon where we obtained practice in alidade surveying, brunton, pacing, and auto traverse.


The Working Environment And The Health Of Workers In Bituminous Coal Mines, Non-Ferrous Metal Mines, And Nonferrous Metal Smelters In Utah, The Division Of Industrial Hygiene; National Institute Of Health; U.S. Public Health Service, The Utah State Board Of Health Jan 1940

The Working Environment And The Health Of Workers In Bituminous Coal Mines, Non-Ferrous Metal Mines, And Nonferrous Metal Smelters In Utah, The Division Of Industrial Hygiene; National Institute Of Health; U.S. Public Health Service, The Utah State Board Of Health

Elusive Documents

No abstract provided.


The Quantitve Measurement Of Amalgamation, Robert A. Mcguire Jan 1940

The Quantitve Measurement Of Amalgamation, Robert A. Mcguire

Bachelors Theses and Reports, 1928 - 1970

Mercury has been known since ancient times. In fact, one mine, the "Almaden" in Spain, has been worked continuously since Roman times. It has been used during all this time for the recovery of free gold from gold concentrates, and from black sand and galena in concentrates from placer work.


Fauna Of The Three Forks Formation In Montana, Will Mitchel Jr. Jan 1940

Fauna Of The Three Forks Formation In Montana, Will Mitchel Jr.

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to identify and describe the fauna, correlate it with that of the Upper Devonian of other states, to note the geographic distribution, lithologic variations of outcrops, and to compare measured cross sections.


Asterolecanium Variolosum Ratzeburg, A Gall-Forming Coccid, And Its Effect Upon The Host Trees, Thaddeus Parr Jan 1940

Asterolecanium Variolosum Ratzeburg, A Gall-Forming Coccid, And Its Effect Upon The Host Trees, Thaddeus Parr

Yale School of the Environment Bulletin Series

No abstract provided.


Disturbance Of Forest Soil Resulting From The Uprooting Of Trees, Harold J. Lutz Jan 1940

Disturbance Of Forest Soil Resulting From The Uprooting Of Trees, Harold J. Lutz

Yale School of the Environment Bulletin Series

No abstract provided.


The Relative Influence Of Raw Material Components Upon The Thermal Expansion Of Vitreous Enamel., Robert C. Boyd Jan 1940

The Relative Influence Of Raw Material Components Upon The Thermal Expansion Of Vitreous Enamel., Robert C. Boyd

Electronic Theses and Dissertations

No abstract provided.


Test 345: International Tractractor Model Td-6 (Widetread), Nebraska Tractor Test Lab Jan 1940

Test 345: International Tractractor Model Td-6 (Widetread), Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Test 364: Allis-Chalmers Model C (Gasoline), Nebraska Tractor Test Lab Jan 1940

Test 364: Allis-Chalmers Model C (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Advertising Brochure: Case V, Nebraska Tractor Test Lab Jan 1940

Advertising Brochure: Case V, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 365: Oliver 80 Standard Hc, Nebraska Tractor Test Lab Jan 1940

Test 365: Oliver 80 Standard Hc, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 339: Ford 9n, Nebraska Tractor Test Lab Jan 1940

Test 339: Ford 9n, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 340: Case Model Dc, Nebraska Tractor Test Lab Jan 1940

Test 340: Case Model Dc, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Test 341: M-M Twin City Model Rtu, Nebraska Tractor Test Lab Jan 1940

Test 341: M-M Twin City Model Rtu, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Test 344: International Tractractor Model Td-9 (Wide Tread), Nebraska Tractor Test Lab Jan 1940

Test 344: International Tractractor Model Td-9 (Wide Tread), Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Test 349: Case Model D, Nebraska Tractor Test Lab Jan 1940

Test 349: Case Model D, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …