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Articles 59371 - 59400 of 59546
Full-Text Articles in Entire DC Network
Nebraska Rocks Which Excite Common Inquiry, Erwin H. Barbour
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
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
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
A New Mammoth, "Elephas Hayi," From Crete, Nebraska, E. H. Barbour
A New Mammoth, "Elephas Hayi," From Crete, Nebraska, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Rocks Which Excite Common Inquiry, E. H. Barbour
Nebraska Rocks Which Excite Common Inquiry, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Fossils Which Excite Common Inquiry, E. H. Barbour
Nebraska Fossils Which Excite Common Inquiry, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A New Mount Of The Fossil Tortoise, "Testudo Orthopygia", E. H. Barbour
A New Mount Of The Fossil Tortoise, "Testudo Orthopygia", E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Minerals Which Excite Common Inquiry, Erwin H. Barbour
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.
A Phenomenon Of The Kansan Drift In Nebraska, Erwin Hinckley Barbour
A Phenomenon Of The Kansan Drift In Nebraska, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
Among the minor phenomena of the glacial drift in Nebraska there is one which, though rarely observed by the public, is of interest and should be commended to the attention of naturalists. The reference here is to certain large, well-defined masses or blocks of such materials as sand, gravel, and coarse pebbles, which occur imbedded in the drift clays along with glacial bowlders, and which presumably have been similarly transported and deposited. These masses or blocks vary widely in color, texture, and kind. They also vary from the glacial matrix in which they are found and are the more striking …
Glacial Geology Work Of Prof. N. H. Winchell, F.W. Sardeson
Glacial Geology Work Of Prof. N. H. Winchell, F.W. Sardeson
Journal of the Minnesota Academy of Science
No abstract provided.
Contributions Of N. H. Winchell To The Geology Of The Iron Ranges Of Minnesota, W.H. Emmons
Contributions Of N. H. Winchell To The Geology Of The Iron Ranges Of Minnesota, W.H. Emmons
Journal of the Minnesota Academy of Science
No abstract provided.
Bulletin No. 134 - The Nitric Nitrogen Content In The Country Rock, Robert Stewart, William Peterson
Bulletin No. 134 - The Nitric Nitrogen Content In The Country Rock, Robert Stewart, William Peterson
UAES Bulletins
In many arid sections of Western America there have been reported marked accumulations of nitrates in the cultivated soil. Hilgard,(1) who was the first to observe these accumulations, believed that the nitrates are being formed at the present time by the rapid nitrification of the organic matter contained in the soil. In Colorado there has been considerable trouble with orchards dying; the death of the trees in some cases has been attributed to the excessive accumulations of nitrates in the cultivated soil. These accumulations are due, according to Dr. Headden,(2) to the fixation of atmospheric nitrogen by bacteria now at …
Two New Fossil Dogs Of The Genus "Crynarctus" From Nebraska, E. H. Barbour
Two New Fossil Dogs Of The Genus "Crynarctus" From Nebraska, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Plant Tissue In The Carboniferous Shales Of Nebraska, Erwin H. Barbour
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.
Notice Of Jelly Fishes In The Carboniferous Of Nebraska, Medusina Walcotti, Erwin H. Barbour
Notice Of Jelly Fishes In The Carboniferous Of Nebraska, Medusina Walcotti, Erwin H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
In visiting the quarries of the State, certain quadripartite objects suggesting the form of jelly fishes have long attracted the writer's attention. They are large and coarse, and were assumed to be imitative concretions. However, the total number observed seems to strengthen the probability that they are of organic origin. In the fall of 1913, while conducting a field class through the Burlington Quarries, located about two miles northwest of South Bend, they were noted again in a new locality, and three specimens were obtained. Two of these were unusual examples, and showed sufficient structure to identify them with the …
Eurypterid Beds Of Nebraska With Notice Of A New Species, "Eurypterus Nebraskaensis", E. H. Barbour
Eurypterid Beds Of Nebraska With Notice Of A New Species, "Eurypterus Nebraskaensis", E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A New Longisrostral Mastodon From Cherry County, Nebraska, E. H. Barbour
A New Longisrostral Mastodon From Cherry County, Nebraska, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
During the season of 1914, field work in the fossil regions was pushed less vigorously than usual owing to lack of funds. N evertheless some interesting and valuable material was obtained by the N ebraska Geological Survey, notably the great mandible of a new longirostral mastodon from Cherry County, together with associated tusk and bones.
The mastodon constituting the basis of this paper was found in the exposnres bordering the Snake River in section 33, range 30 west, and township 32 north. The talus slope was strewn with fragments of the tusk and bone of a mastodon. This led the …
Note On The Dentition Of "Amphicyon Amnicola," A Gigantic Fossil Dog, H. J. Cook
Note On The Dentition Of "Amphicyon Amnicola," A Gigantic Fossil Dog, H. J. Cook
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
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.
A New Fossil Horse, "Hypohippus Matthewi", E. H. Barbour
A New Fossil Horse, "Hypohippus Matthewi", E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Notice Of Jelly Fishes In The Carboniferous Of Nebraska, "Medusina Walcotti", E. H. Barbour
Notice Of Jelly Fishes In The Carboniferous Of Nebraska, "Medusina Walcotti", E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Plant Tissue In The Carboniferous Shales Of Nebraska, E. H. Barbour
Plant Tissue In The Carboniferous Shales Of Nebraska, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A New Longisrostral Mastodon From Cherry County, Nebraska, Erwin H. Barbour
A New Longisrostral Mastodon From Cherry County, Nebraska, Erwin H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
During the season of 1914, field work in the fossil regions was pushed less vigorously than usual owing to lack of funds. Nevertheless some interesting and valuable material was obtained by the Nebraska Geological Survey, notably the great mandible of a new longirostral mastodon from Cherry County, together with associated tusk and bones.
A New Longisrostral Mastodon From Cherry County, Nebraska, Erwin H. Barbour
A New Longisrostral Mastodon From Cherry County, Nebraska, Erwin H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
During the season of 1914, field work in the fossil regions was pushed less vigorously than usual owing to lack of funds. Nevertheless some interesting and valuable material was obtained by the Nebraska Geological Survey, notably the great mandible of a new longirostral mastodon from Cherry County, together with associated tusk and bones.
A New Canid From The Lower Pliocene Of Nebraska, Tephrocyon Mortifer, H. J. Cook
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.
Thomas County Diatomite, C. J. Elmore
Thomas County Diatomite, C. J. Elmore
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Progress In The Study Of Nebraska Diatoma, C. J. Elmore
Progress In The Study Of Nebraska Diatoma, C. J. Elmore
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Note On The Occurrence Of The Mammoth In Sioux County, Nebraska, H. J. Cook
Note On The Occurrence Of The Mammoth In Sioux County, Nebraska, H. J. Cook
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A Working Plan For The Woodlands Of The New Haven Water Company; Prepared After Five Years Of Forest Practice, 1908 To 1912, Ralph C. Hawley
A Working Plan For The Woodlands Of The New Haven Water Company; Prepared After Five Years Of Forest Practice, 1908 To 1912, Ralph C. Hawley
Yale School of the Environment Bulletin Series
Soon after the establishment of the Yale Forest School in 1900, the necessity developed for finding forest lands near the city of NewHaven upon which to conduct field work. It was found that many of the most accessible and best timbered tracts were owned by the New Haven Water Company....about 250 acres near the Maltby Lakes were placed under the management of the Yale Forest School. ...a written plan is desirable. The plan is divided into two parts: the first, descriptive of present conditions and passt accomplishments; the second, treating of the policy to be pursued.
Studies On The Relation Of The Nonavailable Water Of The Soil To The Hygroscopic Coefficient, F. J. Always
Studies On The Relation Of The Nonavailable Water Of The Soil To The Hygroscopic Coefficient, F. J. Always
Nebraska Agricultural Experiment Station: Historical Research Bulletins
These experiments were carried out in connection with and subordinate to various soil investigations, the object being to determine the relation of the final water content of the soil to the hygroscopic coefficient and to determine to what extent the moisture was removed from the different portions of the subsoil not penetrated by plant roots.