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Articles 14191 - 14220 of 14281

Full-Text Articles in Physical Sciences and Mathematics

A Preliminary Report Of The Alkali Resources Of Nebraska, Nebraska Geological Survey Jan 1916

A Preliminary Report Of The Alkali Resources Of Nebraska, Nebraska Geological Survey

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Some Plant Cuticles From The Graneros Shale, A. C. Whitford Jan 1916

Some Plant Cuticles From The Graneros Shale, A. C. Whitford

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Giant Nebraska Bear "Dinarchtotherium Merriama", E. H. Barbour Jan 1916

A Giant Nebraska Bear "Dinarchtotherium Merriama", E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Road Problems In Nebraska, G. E. Condra Jan 1916

Road Problems In Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Description Of Two New Fossil Fungi, A. C. Whitford Jan 1916

A Description Of Two New Fossil Fungi, A. C. Whitford

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Pumicite, E. H. Barbour Jan 1916

Nebraska Pumicite, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Natural Fuels Of Nebraska, Erwin H. Barbour Jan 1916

The Natural Fuels Of Nebraska, Erwin H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Preliminary Report Of The Alkali Resources Of Nebraska, E. H. Barbour Jan 1916

A Preliminary Report Of The Alkali Resources Of Nebraska, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Bulletin No. 139 - The Movement Of Soluble Salts With The Soil Moisture, F. S. Harris May 1915

Bulletin No. 139 - The Movement Of Soluble Salts With The Soil Moisture, F. S. Harris

UAES Bulletins

In irrigated districts, where excessive quantities of water are used, there is usually an accumulation of alkali salts in the soils of the lower lands. These salts are probably dissolved from the soils through which the percolating waters pass and are carried along until the water comes to the surface and is evaporated, when the salts are deposited as a crust at the surface. Many of the most fertile soils of the arid regions have been ruined by the bringing to the surface of soluble salts in such large quantities that the growth of crops is prohibited. The rapidity with …


Nebraska Fossils Which Excite Common Inquiry, E. H. Barbour Jan 1915

Nebraska Fossils Which Excite Common Inquiry, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A New Sabertoothed Cat From Nebraska, Erwin H. Barbour, Harold J. Cook Jan 1915

A New Sabertoothed Cat From Nebraska, Erwin H. Barbour, Harold J. Cook

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A New Mount Of The Fossil Tortoise, "Testudo Orthopygia", E. H. Barbour Jan 1915

A New Mount Of The Fossil Tortoise, "Testudo Orthopygia", E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Green Quartzite - An Important Future Industry, E. H. Barbour Jan 1915

Nebraska Green Quartzite - An Important Future Industry, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Green Quartzite An Import Ant Future Industry, Erwin H. Barbour Jan 1915

Nebraska Green Quartzite An Import Ant Future Industry, Erwin H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

ln southern Harlan and Franklin counties, there occur many acres of green quartzite which must be of commercial consequence when made available. It is a neglected resource upon which important industries are sure to be based. With the development of this bed in view, the Nebraska Geological Survey has examined this area. and through this leaflet wishes to place the results before possible investors.


Nebraska Minerals Which Excite Common Inquiry, Erwin H. Barbour Jan 1915

Nebraska Minerals Which Excite Common Inquiry, Erwin H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

The Minerals, Rocks, and Fossils of Nebraska, which Excite Common Inquiry, are treated brefly in leaflets numbered 37, 37a, 37b, respectively. These are intended to serve as circular letters to correspondents. Possibly they may prove to be acceptable and helpful in a measure to teachers and others who conduct parties of school children on field excursions.


Nebraska Fossils Which Excite Common Inquiry, Erwin H. Barbour Jan 1915

Nebraska Fossils Which Excite Common Inquiry, Erwin H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

This paper must not be mistaken for a report on the fossils of Nebraska. It is merely a circular letter to correspondents describing and figuring those fossils only which occasion frequent comment. In two recent papers of the Survey consideration was given to the common minerals and rocks of Nebraska, and it seems opportune to briefly discuss our fossils in a like manner. Probably no other State can boast of such a well-preserved and varied fauna.


Nebraska Rocks Which Excite Common Inquiry, E. H. Barbour Jan 1915

Nebraska Rocks Which Excite Common Inquiry, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Rocks Which Excite Common Inquiry, Erwin H. Barbour Jan 1915

Nebraska Rocks Which Excite Common Inquiry, Erwin H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

This leaflet it intended to serve as an answer to correspondents who make inquiry about the rocks of Nebraska1. Unfortunately for those interested in such matters, the rocks of the State are few in number, and are deeply buried from view by sand and soil, so there are thousands of square miles in which even a pebble is a rarity. That our rocks are level and undisturbed is practically true. Still there are some surprisingly interesting folds and faults.


The Round Ligament Of Nebraska Proboscideans, Erwin H. Barbour Jan 1915

The Round Ligament Of Nebraska Proboscideans, Erwin H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

Comparisons of the acetabula of various mastodons and mammoths common to Nebraska show conclusively that absence of the round ligament is not a characteristic of the proboscidea, as generally accepted. From the specimens in our collections, there is evidence that the ligament was not on! y present, but was uncommonly large and well developed in the earlier Nebraska proboscideans. Examination of material collected since 1891, and preserved in the cabinets of the Nebraska State Museum. and the Morrill Geological Collections, makes it apparent that all Nebraska proboscideans had round ligaments, though perhaps the latest survivors did not.


A New Saber-Toothed Cat From Nebraska, Erwin H. Barbour, Harold J. Cook Jan 1915

A New Saber-Toothed Cat From Nebraska, Erwin H. Barbour, Harold J. Cook

Conservation and Survey Division: Faculty and Staff Publications

During the field season of 1913, while exploring the Pliocene beds of Brown County, Mr. A. C. Whitford, a Fellow in the Department of Geology, University of Nebraska, discovered the mandible of a new machaerodont cat. His work in this region was in the interest of the Nebraska Geological Survey and the Morrill Geological Expeditions.1


The Round Ligament Of Nebraska Proboscideans, E. H. Barbour Jan 1915

The Round Ligament Of Nebraska Proboscideans, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A New Mammoth, "Elephas Hayi," From Crete, Nebraska, E. H. Barbour Jan 1915

A New Mammoth, "Elephas Hayi," From Crete, Nebraska, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Minerals Which Excite Common Inquiry, E. H. Barbour Jan 1915

Nebraska Minerals Which Excite Common Inquiry, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Notes On The Geology Of Sioux County, Nebraska, And Vicinity, H. J. Cook Jan 1915

Notes On The Geology Of Sioux County, Nebraska, And Vicinity, H. J. Cook

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Pennsylvanian Formations Of Southeastern Nebraska, Geo E. Condra, N. A. Bengtson Jan 1915

The Pennsylvanian Formations Of Southeastern Nebraska, Geo E. Condra, N. A. Bengtson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Two New Fossil Dogs Of The Genus "Crynarctus" From Nebraska, E. H. Barbour Jan 1914

Two New Fossil Dogs Of The Genus "Crynarctus" From Nebraska, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A New Canid From The Lower Pliocene Of Nebraska, Tephrocyon Mortifer, H. J. Cook Jan 1914

A New Canid From The Lower Pliocene Of Nebraska, Tephrocyon Mortifer, H. J. Cook

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Plant Tissue In The Carboniferous Shales Of Nebraska, Erwin H. Barbour Jan 1914

Plant Tissue In The Carboniferous Shales Of Nebraska, Erwin H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

While exploring the newly discovered Eurypterid beds,1 just one mile south of Peru, Nebraska. November 8, 1912, the writer found unusual amounts of actual plant tissue of Carboniferous age. It seems incredible that it should have been preserved through such a lapse of time. Only the most resistant tissue could have endured. When freshly cleaved, the Eurypterid shales reveal innumerable bits and patches of it, mostly bright red in color.


Plant Tissue In The Carboniferous Shales Of Nebraska, E. H. Barbour Jan 1914

Plant Tissue In The Carboniferous Shales Of Nebraska, E. H. Barbour

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Two New Fossil Dogs Of The Genus Cynarctus From Nebraska, Erwin H. Barbour, Harold J. Cook Jan 1914

Two New Fossil Dogs Of The Genus Cynarctus From Nebraska, Erwin H. Barbour, Harold J. Cook

Conservation and Survey Division: Faculty and Staff Publications

The genus Cynarctus was founded by Dr. W. D. Matthew on a nearly complete pair of lower jaws from the Pawnee Creek Beds (Middle Miocene) of Colorado, found in 1901. Since that time no new material pertaining to this genus has been reported. Dr. Matthew referred the genus to the subfamily Amphicyoninae, and to a position intermediate between the primitive bear Ursavus, and the Canidae, with primitive characters retained from its Oligocene ancestors.