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Articles 144121 - 144150 of 144833
Full-Text Articles in Physical Sciences and Mathematics
The Coal Measure Bryozoa Of Nebraska, George Evart Condra
The Coal Measure Bryozoa Of Nebraska, George Evart Condra
George E. Condra Publications
In the summer of 1896, at the suggestion of Professor Erwin H. Barbour, Director of the Nebraska Geological Survey, the writer began a study of the fossil bryozoa of the state.
Report Of The State Geologist, Erwin H. Barbour
Report Of The State Geologist, Erwin H. Barbour
Conservation and Survey Division
No abstract provided.
Report On The Progress Of The Nebraska State Geological Survey And The Morrill Geological Expedition Of 1901, Erwin Hinckley Barbour
Report On The Progress Of The Nebraska State Geological Survey And The Morrill Geological Expedition Of 1901, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
IN spite of the phenomenal heat of the summer of 1901, which was of such intensity and duration that active work in the field was finally suspended, enough progress was made to justify the presentation of the matter to this society. It should be reported, first of all, that a request for funds, amounting to twelve hundred dollars, for publishing the first reports of the state geological survey, was presented to the Legislature, and was passed April 1, 1901, without comment or dissent. This may be recorded as the first sum voted by the state for the examination and publication …
Geologic Atlas Of The United States: Scotts Bluff Folio, Nebraska, Charles D. Walcott, N. H. Darton
Geologic Atlas Of The United States: Scotts Bluff Folio, Nebraska, Charles D. Walcott, N. H. Darton
United States Geological Survey: Publications
Geography
Geology
Economic Geology
Topographic sheet
Areal Geology sheet
Columnar Section sheet
6 photos
Geological Atlas Of The United States: Camp Clark Folio, Nebraska, Charles D. Walcott, N. H. Darton
Geological Atlas Of The United States: Camp Clark Folio, Nebraska, Charles D. Walcott, N. H. Darton
United States Geological Survey: Publications
12 oversize pages, 18-3/8 x 21-3/4 inches
Includes parts of Cheyenne, Scotts Bluff, and Banner Counties.
Geography, Economic Geology
Topographic Sheet
Areal Geology Sheet 41°30' 103°00' to 42°00', 103°30'
Columnar Section Sheet
7 photos
The Geological Bibllography Of Nebraska, Erwin H. Barbour, Cassius A. Fisher
The Geological Bibllography Of Nebraska, Erwin H. Barbour, Cassius A. Fisher
Department of Earth and Atmospheric Sciences: Faculty Publications
Where there is a wide diversity of interests it is necessary for citizens, including farmers, mechanics, merchants, students, and professional men, to make constant reference to. the various authors of the state to learn what has been done and what has been written along the diverse lines of investigation in which they are interested. In response, then, to constant inquiry the following list of papers is prepared, being compiled from every available source. PaleontoIogical papers dealing mainly with the descriptions have not been included in every case. But the list of articles concerning our geography, physiography, stratigraphy, resources, water-supply, etc., …
Water: Its Inluence On Health And Disease, John Wilby
Water: Its Inluence On Health And Disease, John Wilby
Student and Lippitt Prize Essays
An insight into the health effects of water and diseases it may carry; provides alternative ideas and solutions for sanitizing.
The Determination Of Sulphuric Acid In The Presence Of Iron, Louis George Karl. Clarner Jr.
The Determination Of Sulphuric Acid In The Presence Of Iron, Louis George Karl. Clarner Jr.
Student and Lippitt Prize Essays
This essay attempts to determine the best way to detect sulfuric acid in the presence of iron by investigating the already existing methods and reviewing other chemists’ procedures.
Report On The Work Of The Morrill Geological Expeditions Of The University Of Nebraska, Carrie Adeline Barbour
Report On The Work Of The Morrill Geological Expeditions Of The University Of Nebraska, Carrie Adeline Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
Through the generosity of the Hon. Charles H. Morrill, of Lincoln, the expeditions sent out from the University of Nebraska, known as the Morrill Geological Expeditions, have become a permanent organization of the University. Therefore, it is but a fitting mark of respect that reports of these expeditions be given to the Nebraska Academy of Science from time to time in order that they may become matters of record. Introductory to this work, a private geological excursion was undertaken in June of 1891, by Mr. Erwin Hinckley Barbour in the interest of the University of Nebraska. At this time the …
Glacial Grooves And Striae In Southeastern Nebraska, Erwin Hinckley Barbour
Glacial Grooves And Striae In Southeastern Nebraska, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
NEBRASKA is so close upon the western as well as the southern limit of the drift that evidences of glacial action which might be commonplace elsewhere are rare and interesting here. The mere fact that glacial grooves and striae have been found seems worthy therefore of mention. Glacial drift, readily recognizable as such, does not extend far west of the 97th meridian, and in but one place in the state, on the Dakota-Nebraska boundary, does it reach the 98th meridian. East of the 97th meridian it is distinct and unmistakable, and it may be offered as a safe statement that …
Report On The Initial Work Of The State Geological Survey Of Nebraska, Erwin Hinckley Barbour
Report On The Initial Work Of The State Geological Survey Of Nebraska, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
IN a State such as Nebraska where there is no 'mineral'--a term which in the west has come to mean gold and silver-bearing--it is difficult to convince the masses that there is the least possible economic importance in a State geological survey.
If 'mineral' did occur, apathy could much more easily be overcome, and the appeals for a survey would find more willing and receptive ears. But something stronger than apathy is encountered in the prejudice which has been engendered against a State survey by men who have sought heretofore to establish such for the evident purpose of holding office, …
Some Experiments In Molecular Contact, James S. Stevens
Some Experiments In Molecular Contact, James S. Stevens
Physics and Astronomy Faculty Scholarship
In working with an interferometer it was observed that one could slide the brass plate which carries the movable mirror along the bed upon which it lies so that the fringes would suffer displacement for a small but definite amount, and that when the plate was released they would return to their original position. The idea occurred to me that it might be possible to measure these displacements for given weights applied to move the mirror-plate, and ascertain if they followed any law, and what relation these experiments bore to the ordinary experiments for finding the coefficients of friction.
The Effect Of Magnetization Upon The Elasticity Of Rods, J. S. Stevens, H. G. Dorsey
The Effect Of Magnetization Upon The Elasticity Of Rods, J. S. Stevens, H. G. Dorsey
Physics and Astronomy Faculty Scholarship
In the Physical Review, Vol. II, No. 4 and Vol. III., No. 6, is described a series of important experiments which show the relation between temperature and elasticity in wire. In one of the papers the statement was made that the results seem to indicate that the magnetizing effect of the current through the wire increases the modulus of elasticity. The increase in temperature in the wire was produced by sending a current directly through it, and also by sending a current through the helix that surrounded it. The author stated that "the magnetization produced by the first method had …
A Determination Of The Modulus Of Elasticity For Small Loads, Charles P. Weston
A Determination Of The Modulus Of Elasticity For Small Loads, Charles P. Weston
Physics and Astronomy Faculty Scholarship
"At the suggestion of Professor James S. Stevens, and under his supervision, I undertook to apply interference methods of measurement to an experimental determination of Young's modulus for copper, brass, and steel. The metals were in the form of bars, 66 cm x 1 cm x 0.5 cm (approximate dimensions). The general method followed was the so-called "method of flexure" in which a bar, supported at each end on knife edges, if deflected by a weight applied at the center,
Extracts Of Letters From Euler To Johann I Bernoulli, 1728-1729, Leonhard Euler
Extracts Of Letters From Euler To Johann I Bernoulli, 1728-1729, Leonhard Euler
All Works by Eneström Number
No abstract provided.
Combustion Analysis; Estimation Of Carbon & Hydrogen, Clifford Brewster Morrison
Combustion Analysis; Estimation Of Carbon & Hydrogen, Clifford Brewster Morrison
Student and Lippitt Prize Essays
Documents the methods of composition analysis by Antoine Lavoisier the 18th century and the adoption and refinement of this method by Theodore V. Saussure and others in the 19th century to combustion analysis. Includes plates of measurement equipment used.
Tides, Robert Spink Reynolds
Tides, Robert Spink Reynolds
Student and Lippitt Prize Essays
Explores the ocean tide phenomenon and the influences on tide patterns.
Abnormal Vapor Densities, Minnie Elizabeth Rice
Abnormal Vapor Densities, Minnie Elizabeth Rice
Student and Lippitt Prize Essays
This essay questions Italian chemist Avogadro’s hypothesis about vapor densities, ultimately coming to the conclusion that Avogadro’s law is open to objection.
Wells And Windmills In Nebraska, Erwin Hinckley Barbour
Wells And Windmills In Nebraska, Erwin Hinckley Barbour
United States Geological Survey: Publications
SIR :
I have the honor to transmit herewith a manuscript entitled "Wells and Windmills in Nebraska," prepared by Erwin Hinckley Barbour, professor of geology in the University of Nebraska and acting State geologist. The data for this manuscript were obtained by Professor Barbour incidental to his studies of the geology of the State, and have been rounded out by special work carried on under his direction. The original manuscript as prepared consisted of two parts the first upon wells, and the second upon homemade windmills but owing to delays in printing the first part, it has been considered advisable …
Determination Of Atmospheric Constituents, Ralph Ordway Brooks
Determination Of Atmospheric Constituents, Ralph Ordway Brooks
Student and Lippitt Prize Essays
Discusses the elements of the atmosphere and its researchers, including, but not limited to, Black, Priestley, Scheele, Canvendish and Lavoisier.
Acetylene Gas; Its Preparation And Value As An Illuminant, Alfred W. Bosworth
Acetylene Gas; Its Preparation And Value As An Illuminant, Alfred W. Bosworth
Student and Lippitt Prize Essays
This essay briefly discusses the history of Acetylene gas and delves further into its production, uses and value.
An Application Of Interference Mmthods To A Study Of The Changes Produced In Metals By Magnetization, J. S. Stevens
An Application Of Interference Mmthods To A Study Of The Changes Produced In Metals By Magnetization, J. S. Stevens
Physics and Astronomy Faculty Scholarship
Problems which have for their object a study of the changes produced in metals when magnetized have, during the past fifty years, received attention from physicists. It is thought that if a thorough investigation of the subject could be made, much light would be thrown upon the phenomenon of magnetization, and even the theory of the constitution of matter. Historical notes relating to this problem may be found in the Physical Review, Vol. III, No. 15, and Vol. V., No. 5. The results of various investigators agree fairly well as to the maximum elongation of a rod or wire when …
A Preliminary Report On The Mechanical Analyses Of The Soils Of Nebraska., Erwin Hinckley Barbour
A Preliminary Report On The Mechanical Analyses Of The Soils Of Nebraska., Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
Under the auspices of the State Board of Agriculture the Geologist of the Board undertook, in 1892, the work of collecting the soils of the state, both for permanent display in the State Museum and for the more technical purposes of analysis.
Bulletin No. 52 - The Chemical Composition Of Utah Soils (Cache And Sanpete Counties), John A. Widtsoe
Bulletin No. 52 - The Chemical Composition Of Utah Soils (Cache And Sanpete Counties), John A. Widtsoe
UAES Bulletins
The soils of the State [Utah], as found by the Mormon pioneers of 1847, were virgin in the fullest sense of the word. As far as man knows, only a few patches in Southern Utah had ever been cultivated. For untold centuries the atmospheric forces, unhindered by man's intervention, had been allowed to weather and make fit for agricultural purposes the rock fragments that, washed down into the valleys from the mountain ranges, constitute the soils of the State. For a long period, also, long before human tradition begins, there had not been enough water in the Utah valleys to …
Inversion Applied To The Common Equations Of The Conic Sections, Edna Maria Cargill
Inversion Applied To The Common Equations Of The Conic Sections, Edna Maria Cargill
Student and Lippitt Prize Essays
A solution of applying inversion to the mathematic equation of conic sections, beginning with a definition of inversion and statement of the problem.
Bulletin No. 48 - Alfalfa Or Lucern: Its Chemical Life History, John A. Widtsoe
Bulletin No. 48 - Alfalfa Or Lucern: Its Chemical Life History, John A. Widtsoe
UAES Bulletins
No abstract provided.
Bulletin No. 47 - The Climate Of Utah, James Dryden
Bulletin No. 47 - The Climate Of Utah, James Dryden
UAES Bulletins
In reporting the meteorological observations of the Station for the years 1895 and 1896, it has been thought well to include for purposes of comparison records of temperature and precipitation at several other Utah points, as well as other data of climatological importance. The bringing together of all the known facts of our climate is a work of necessity that has been too long neglected. Observers have been patiently collecting data, some of them for a quarter of a century or more, and of the mass that has been collected very little is known outside of the periodical records of …
Extracts Of Letters From Euler To Johann I Bernoulli, 1739-1740, Leonhard Euler
Extracts Of Letters From Euler To Johann I Bernoulli, 1739-1740, Leonhard Euler
All Works by Eneström Number
No abstract provided.
Petroleum, Charles F. Kenyon
Petroleum, Charles F. Kenyon
Student and Lippitt Prize Essays
Explores the strengths and weaknesses of origin theories of petroleum while also discussing the chemistry and process of producing oil in the United States.
Some Contributions Of Pure Math To Science, Herbert B.E. Case
Some Contributions Of Pure Math To Science, Herbert B.E. Case
Student and Lippitt Prize Essays
An examination of the connection between math and science through discoveries in the subjects of astronomy, mechanics, physics and chemistry.