Physical Sciences and Mathematics Commons^™

Report Of The Nebraska Conservation And Soil Survey, G. E. Condra

Conservation and Survey Division

No abstract provided.

Bulletin No. 114 - The Movement Of Nitric Nitrogen In Soil And Its Relation To "Nitrogen Fixation", Robert Stewart, J. E. Greaves

UAES Bulletins

In the spring of 1903, we commenced at the Utah Experiment Station a series of experiments, the purpose of which was to study the development and movement of nitrates in irrigated soil. The work was so outlined that it should give some very definite results, both as to the influence of water and the plant, upon the nitric nitrogen content of the soil.

Report Of The Second Annual Nebraska Conservation And State Development Congress, G. E. Condra, W. G. Whitmore, W. R. Mellor

George E. Condra Publications

No abstract provided.

A New Carboniferous Coral "Craterophyllum Verticillatum", Erwin Kinckley Barbour

Conservation and Survey Division

No abstract provided.

Bulletin No. 109 - The Nitrogen And Humus Problem In Dry-Land Farming, Robert Stewart

UAES Bulletins

The effect of cultivation and the growth of crops upon the nitrogen and humus content of soils has been studied by various investigators, both in America and Europe. In general, the results of the various investigations indicate that cropping and cultivation are very destructive of the organic. matter and the nitrogen of the surface soil.

Geographical Influences In The Development Of Nebraska, George E. Condra

George E. Condra Publications

Nebraska is centrally located in the mainland of the United States, being a part of the long slope of the High Plains Regions.

Preliminary Notes On The Carboniferous Flora Of Nebraska, Roy V. Pepperberg

Conservation and Survey Division

About the middle of July, 1907, while engaged by the Nebraska City Commercial Club in examining the geology of Nebraska City and vicinity, the writer was called b the farm of Mr. C. B. James to look at a bed of what was supposed to be fire clay. This proved to be a Carboniferous deposit of stratified micaceous sandstone, interstratified with a fine compact shale, both of which are yellow in color and very fragile when wet.

Coal In Nebraska, Roy V. Pepperberg

Conservation and Survey Division

Until February, 1906, Nebraska was termed "the state without a mine," and may still be called the state with but a single mine, and yet it would be impossible to tell how much prospecting has been done, or to estimate the number of thousands of dollars that have been spent in this state trying to develop paying mines from the thin beds of coal discovered throughout various parts of the state in the Carboniferous and Cretaceous formations.

Coal In Nebraska, Roy V. Pepperberg

Conservation and Survey Division

Until February, 1906, Nebraska was termed "the state without a mine," and may still be called the state with but a single mine, and yet it would be impossible to tell how much prospecting has been done, or to estimate the number of thousands of dollars that have been spent in this state trying to develop paying mines from the thin beds of coal discovered throughout various parts of the state in the Carboniferous and Cretadeous formations.

The Development Of Our Natural Resources, E. H. Barbour

Conservation and Survey Division

No abstract provided.

Bulletin No. 106 - A Study Of The Production And Movement Of Nitric Nitrogen In An Irrigated Soil, Robert Stewart, J. E. Greaves

UAES Bulletins

The problem of maintaining the nitrogen content in our agricultural soils is one of vital importance to the development of a permanent system of agriculture. Any investigation, therefore, which tends to throw any light on the conditions which are necessary for maintaining the maximum supply of nitrogen in our soils needs no apology for its institution.

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 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

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

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

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

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.

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

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

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

Conservation and Survey Division

No abstract provided.

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.

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

Conservation and Survey Division

No abstract provided.

Notice Of A New Fossil Rhinoceros From Sioux County Nebraska, Erwin Hinckley Barbour

Conservation and Survey Division

No abstract provided.

Bulletin No. 89 - A New Centrifugal Soil Elutriator, P. A. Yoder

UAES Bulletins

Within recent years much has been done toward determining the agricultural significance of certain physical properties of the soil. The grade of fineness is the most important of these physical properties, in that it determines, to a large extent, other properties. The· mechanical analysis of soils has thus come to be considered of primary importance in soil investigations. Any improvements in the methods or apparatus for mechanical analysis will, therefore, doubtless be welcomed by agricultural investigators. Though this is a very recent line of work, still many devices have been introduced for the separation of soil on the basis of …

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

Conservation and Survey Division

No abstract provided.

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 …

Report Of The Geologist, Erwin Hinckley Barbour

Department of Earth and Atmospheric Sciences: Faculty Publications

THE PROBLEM OF OUR SOILS AND SOIL MOISTURE.

The soil survey of the state, which was begun by the author in November of 1892, has progressed to the point where it might be considered finished. That is, one or more samples of soils have been taken from every distinct soil region in the state-in fact, most of the separate counties are represented, and mechanical analyses of many of these have already been made. However, in consideration of the size of our counties, the work will not be declared complete until each is represented in the state museum by soil prisms …