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Articles 291271 - 291300 of 292126
Full-Text Articles in Physical Sciences and Mathematics
Bulletin No. 104 - The Storage Of Winter Precipitation In Soils, John A. Widtsoe
Bulletin No. 104 - The Storage Of Winter Precipitation In Soils, John A. Widtsoe
UAES Bulletins
It has been found that the production of one pound of dry plant substance on soils of average fertility, requires in humid districts not more than five hundred pounds of water, and in arid districts like Utah about seven hundred and fifty pounds. This indicates that the average rainfall of Utah, which is about twelve inches, if properly conserved in the soil, is sufficient to produce annually, without irrigation, from thirty to forty-five bushels of wheat to the acre, or corresponding yields of other crops. The realization of this truth has changed greatly our views of irrigation practices. The beginning …
The Effect Of Certain Minerals Upon The Volatilization Of Silver Chloride, Boyd Dudley Jr.
The Effect Of Certain Minerals Upon The Volatilization Of Silver Chloride, Boyd Dudley Jr.
Bachelors Theses
"The work undertaken in this investigation was first suggested in connection with the analytical determination of Silver and Chlorine by weighing silver chloride. Later, however, the experiments assumed a metallurgical character. The final purpose of the experiments was to determine the effect of a few of the common mineral constituents of ores on the loss of silver during a chloridizing roast. In the metallurgy of silver it is frequently necessary to change the silver bearing minerals into silver chloride"--page 1.
The Effect Of Antimony On The Assay Of Gold And Silver Ores, Herman Carl Hase, Charles Lewis French
The Effect Of Antimony On The Assay Of Gold And Silver Ores, Herman Carl Hase, Charles Lewis French
Bachelors Theses
"Our problem was to determine the effect of antimony in assaying for gold and silver. The method of attack was to find loss of gold and silver: 1) with variable antimony and a constant temperature. 2) with variable temperature and constant antimony"--page 1.
Several Lines Of A Letter From Euler To The Royal Society Dated 21 October/1 November 1768, Leonhard Euler
Several Lines Of A Letter From Euler To The Royal Society Dated 21 October/1 November 1768, Leonhard Euler
All Works by Eneström Number
No abstract provided.
The Sand And Gravel Resources And Industries Of Nebraska, George Evart Condra
The Sand And Gravel Resources And Industries Of Nebraska, George Evart Condra
George E. Condra Publications
Sand and gravel are Nebraska's most important mineral resources. The extensive use which is made of these materials in the building and trade industries not only in our own but in adjoining states, is a factor of economic importance in the industrial development of Nebraska.
The Skull Of Moropus, Erwin Hinckley Barbour
The Skull Of Moropus, Erwin Hinckley Barbour
Conservation and Survey Division
During the summer of 1905 the Morrill Geological Expedition of the University of Nebraska had the good fortune to discover early in July the skull of Moropus. Associated with it were mandible, atlas and other cervicals, and various skeletal parts.
The Control, Development And Utilization Of The Missouri River And Its Tributaries, G. E. Condra, H. W. Caldwell, O. V.P. Stout, F. J. Phillips, N. A. Bengtson, George L. Sheldon
The Control, Development And Utilization Of The Missouri River And Its Tributaries, G. E. Condra, H. W. Caldwell, O. V.P. Stout, F. J. Phillips, N. A. Bengtson, George L. Sheldon
Conservation and Survey Division
The speakers at this conference were Professors Condra, Caldwell, Stout, Phillips, Bengtson, and Gov. George L. Sheldon, with Dean Charles E. Bessey presiding. The principal object of the meeting was to make known reliable information in regard to the Missouri river, concerning which there is widespread interest and in some instances a tendency to magnify the future possibilities of the river. This paper is an account of the conference. It gives some of the thoughts that were emphasized at the symposium, reciting the facts as they were given by those who have investigated the respective phases of the theme.
GEOGRAPHIC …
Skeletal Parts Of Moropus, Erwin Hinckley Barbour
Skeletal Parts Of Moropus, Erwin Hinckley Barbour
Conservation and Survey Division
In the foregoing publication, it was announced that the skull of Moropus had been discovered. Heretofore the genus had been known chiefly by scattered teeth and fragments, mostly toe bones, but now that the collections of Hon. Charles H. Morrill, Nebraska State Museum, have the skeletal parts necessary for the restoration of this remarkable animal, it seems advisable to supplement the brief illustrated report concerning the skull of Moropus with a similar paper concerning its skeletal parts.
Tests Of The Strength Of Concrete
Tests Of The Strength Of Concrete
Conservation and Survey Division
Since the use of concrete is becoming so general it seems quite appropriate that the tests of concrete in which any Nebraska material forms a constituent part should be recorded where they may be obtained by those interested.. The following tests were made in the Testing Laboratory of the University of Nebraska, and though very limited in number may be expressive of the qualities of concrete mixed from these materials.
Three Letters From Euler To Daniel Bernoulli, 1734-1740, Leonhard Euler
Three Letters From Euler To Daniel Bernoulli, 1734-1740, Leonhard Euler
All Works by Eneström Number
No abstract provided.
Evidence Of Man In The Loess Of Nebraska, Erwin Hinckley Barbour
Evidence Of Man In The Loess Of Nebraska, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
AFTER careful investigation the writer stands ready to announce his belief in the occurrence of human remains in the loess of this state, and for this primitive type he has proposed the name Nebraska loess man. Such importance attaches to the discovery as to warrant a paper devoted to the geological facts connected therewith.
Design Of A Lead Blast Furnace, Walter Irving Phillips, Andrew Jackson Seltzer
Design Of A Lead Blast Furnace, Walter Irving Phillips, Andrew Jackson Seltzer
Bachelors Theses
"In order to get the approximate size of the Furnace we made the following assumptions, being guided as far as possible by the practice of the Globe Smelting Works at Denver, Colorado whenever that could be ascertained"--page 1.
Analyses Of Limestones And Shales, Byron John Snyder
Analyses Of Limestones And Shales, Byron John Snyder
Bachelors Theses
"The limestones were analyzed to determine their value for cement and lime manufacture, and were taken from several counties in the state of Missouri. Most of the limestones examined were very pure. A considerable quantity of well burned lime is added to other material in the manufacture of cement, a lime of very pure type being the most acceptable in this work"--page 1.
On The Origin And Definition Of The Geologic Term "Laramie", A. C. Veatch
On The Origin And Definition Of The Geologic Term "Laramie", A. C. Veatch
United States Geological Survey: Staff Publications
INTRODUCTION
Investigations of the United States Geological Survey during the summer of I906, covering the larger part of the Laramie exposures on the Laramie Plains, examined by the King and Hayden surveys, have revealed many new and important facts bearing on the Laramie problem.
By detailed areal surveys it was found: (1) that the lignitiferous series, which in the Laramie Plains lies between the Montana below and the Fort Union above, and has a maximum thickness of about 12,500 feet, is divided about the middle by an unconformity; (2) that this unconformity is in the same stratigraphic plane and continuous …
Report Of The Geological Expedition Of Hon. Charles H. Morrill. Season Of 1906, Erwin Hinckley Barbour
Report Of The Geological Expedition Of Hon. Charles H. Morrill. Season Of 1906, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
THE MORRILL geological expedition of the University of Nebraska for the season of 1906 continued the work of the previous season by developing the bone quarry on University Hill, at Agate, Sioux County, Nebraska. This quarry is situated on the eastern extremity of Mr. James Cook's ranch, which is an extensive one, and probably the best known in the state. In addition to the uplands it contains some ten square miles along the valley of the Niobrara. The high bluffs adjacent to and beyond this model ranch are fossiliferous, while at Carnegie Hill and University Hill there are literal bone …
Biennial Report Work Of The State Geological Survey In Brief, Erwin Hinckley Barbour
Biennial Report Work Of The State Geological Survey In Brief, Erwin Hinckley Barbour
Conservation and Survey Division
The Nebraska Geological Survey as now constituted has been in operation since 1891, but it has enjoyed state aid during the past four years only. Considering the size of the commonwealth and the limited appropriations for geological work, unusual progress has been made.
Biennial Report, Erwin H. Barbour
Biennial Report, Erwin H. Barbour
Conservation and Survey Division
The Nebraska Geological Survey as now constituted has been in operation since 1891, but it has enjoyed state aid during the past four years only. Considering the size of the commonwealth and the limited appropriations for geological work, unusual progress has been made. Since no report covering the work of the first biennium was prepared it will be included incidentally in this paper. Briefly stated the Nebraska Geological Survey during the past biennium has devoted especial attention to the industrial resources of the state, prepared ten o! twelve reports in manuscript form, published eight reports completing volumes I and II, …
Opening Of The Indian Territory, G. E. Condra
Opening Of The Indian Territory, G. E. Condra
Conservation and Survey Division
The opening of Indian country has continued from Colonial days to the present. Usually it has resulted from force and treaty, the strong dispossessing the weak. As a result, the Red man has, in general, moved frontierward, ahead of industrial waves, remaining for a longer time only on reservations set aside for tribes. The Indian's struggle even on these reserves has been a losing one, resulting largely from war, disease, and the cupidity of whites. History shows that Indian life and Indian institutions have not prevailed against the white man's civilization and commerce. GATHERING THE TRIBES. The Indian Territory and …
Report On The Honey Creek Coal Mine, Erwin Hinckley Barbour
Report On The Honey Creek Coal Mine, Erwin Hinckley Barbour
Conservation and Survey Division
No abstract provided.
Evidence Of Loess Man In Nebraska, Erwin Hinckley Barbour
Evidence Of Loess Man In Nebraska, Erwin Hinckley Barbour
Conservation and Survey Division
Unconsciously or otherwise an investigator is often influenced to see that which seems confirmatory rather than that which is contradictory to his conceptions and beliefs. But in conducting the search for evidence of human remains in the Pleistocene the writer has striven against this psychological tendency and has aimed to be severely critical and exact.
Notice Of A New Miocene Rhinoceros, Diceratherium Arikarense, Erwin Hinckley Barbour
Notice Of A New Miocene Rhinoceros, Diceratherium Arikarense, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
THE accompanying sketches represent the skull of a species of rhinoceros, Diceratherium arikarense, supposedly new, discovered by the geological expedition of 1905, sent from the University of Nebraska by the Hon. Charles H. Morrill to the Loup Fork beds at Agate, Nebraska, on the ranch of Mr. James Cook.
The genus Diceratherium was established by Marsh in 1875 on material from the Miocene beds near the John Day River in eastern Oregon, and two species, armatum and nanum, were recognized. A third species, advenum, was based on material from the Eocene (possibly Miocene) of Utah. Difference of horizon, …
A Workable Bed Of Coal In Nebraska, Erwin Hinckley Barbour
A Workable Bed Of Coal In Nebraska, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
ALTHOUGH for years past the state legislature of Nebraska has offered a bounty amounting to four thousand dollars for the discovery of a twenty-six-inch bed of workable coal, and five thousand for a thirty-six-inch bed, it is only within the past few days that any one has filed with the governor legitimate claims for the bounty. The bed of coal recently exposed, near Peru, Neb., extending some forty-two feet along the sides of a tunnel back from the banks of Honey Creek, seems to be fully thirty-four inches in thickness, as measured by the writer. This is known as the …
Comparative Observations On The Evolution Of Gas From The Cathode In Helium And Argon, Clarence A. Skinner
Comparative Observations On The Evolution Of Gas From The Cathode In Helium And Argon, Clarence A. Skinner
University Studies (University of Nebraska): Papers
No abstract provided.
Report Of The Tenth Geological Expedition Of Hon. Charles H. Morrill, Season Of 1905, Erwin Hinckley Barbour
Report Of The Tenth Geological Expedition Of Hon. Charles H. Morrill, Season Of 1905, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
The season of 1905 marked a renewal of paleontological activity in the University of Nebraska, since it so happened that for the first time in several years funds became available again for the prosecution of such work.
By virtue of the liberal support and patronage of Hon. Charles H. Morrill, of Lincoln, annual geological expeditions, essentially paleontological in character, had been maintained in connection with the state university since 1892. In 1901, though his interest in the work AS well as his good will continued, his patronage ceased. This was wholly due to the overcrowded condition of the state museum, …
Report Of The Tenth Geological Expedition Of Hon. Charles H. Morrill, Season Of 1905, Erwin Hinckley Barbour
Report Of The Tenth Geological Expedition Of Hon. Charles H. Morrill, Season Of 1905, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
The season of 1905 marked a renewal of paleontological activity in the University of Nebraska, since it so happened that for the first time in several years funds became available again for the prosecution of such work.
By virtue of the liberal support and patronage of Hon. Charles H. Morrill, of Lincoln, annual geological expeditions, essentially paleontological in character, had been maintained in connection with the state university since 1892. In 1901, though his interest in the work AS well as his good will continued, his patronage ceased. This was wholly due to the overcrowded condition of the state museum, …
Preliminary Report On The Primitive Man Of Nebraska, Erwin H. Barbour, Henry B. Ward
Preliminary Report On The Primitive Man Of Nebraska, Erwin H. Barbour, Henry B. Ward
Conservation and Survey Division
About ten miles north of Omaha, or three miles north of Florence, Nebraska, on a hill weathered out of the Loess formation, a circular burial mound was recently observed and explored by Mr. Robert F. Gilder.
The Geology Of Cass County Nebraska, Elmer Grant Woodruff
The Geology Of Cass County Nebraska, Elmer Grant Woodruff
Conservation and Survey Division
No abstract provided.
Notice Of A New Fossil Rhinoceros From Sioux County Nebraska, Erwin Hinckley Barbour
Notice Of A New Fossil Rhinoceros From Sioux County Nebraska, Erwin Hinckley Barbour
Conservation and Survey Division
No abstract provided.
A New Miocene Artiodactyl, Erwin Hinckley Barbour
A New Miocene Artiodactyl, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
AMONG several discoveries made in the Daimonelix beds (Loup Fork) of Sioux County, Nebraska, the most striking one of the season seems to be that of a new four-horned ancestral antelope, Syndyoceras cooki, the skull of which is herein figured and briefly described. The discovery was made by Mr. Harold G. Cook, a former Lincoln student and a member of the Morrill geological expedition of 1905.
Some Kentucky Clays, Including Kaolinic, Plastic And Fire Clays: Clays In Several Parts Of Kentucky, With Some Account Of Sands, Marls And Limestones, Aug Foerste, James H. Gardner
Some Kentucky Clays, Including Kaolinic, Plastic And Fire Clays: Clays In Several Parts Of Kentucky, With Some Account Of Sands, Marls And Limestones, Aug Foerste, James H. Gardner
Bulletin--KGS
The bulletin is preliminary in character and is offered now simply in order to meet the urgent calls for all information concerning our clays that is at present available. A more comprehensive report, in which not only the geology and distribution of our clays, but also their technological values, will be given, will follow in due course.
Data for such a bulletin are being gathered as rapidly as circumstances will permit. Among the clays upon which more field work is required are some of those associated with the coals and Conglomerate Measures of the Eastern Coalfield; those in other Lower …