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Articles 29911 - 29940 of 30006
Full-Text Articles in Entire DC Network
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 Minor Phenomenon Of The Glacial Drift In Nebraska, Erwin H. Barbour
A Minor Phenomenon Of The Glacial Drift In Nebraska, Erwin H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Cement Manufacture In Nebraska, Erwin Hinckley Barbour
Cement Manufacture In Nebraska, Erwin Hinckley Barbour
Conservation and Survey Division: Faculty and Staff Publications
It is the purpose of this paper to briefly review the history of cement manufacture in the State, to call attention to certain promising exposures of cement rock, and to report upon the first modern cement mill in Nebraska. Not that this State has been slow in recognizing cement as one of the most important modern constructional materials; or slow to recognize the need of developing its natural resources; but due rather to a combination of circumstances. For at least twenty years, many Nebraskans have had in mind the importance of establishing cement plants in this State. Furthermore encouraging inducements …
Geology Of The Killdeer Mountains, Dunn County, North Dakota, Terence T. Quirke
Geology Of The Killdeer Mountains, Dunn County, North Dakota, Terence T. Quirke
Theses and Dissertations
No abstract provided.
Report Of The Nebraska Conservation And Soil Survey, G. E. Condra
Report Of The Nebraska Conservation And Soil Survey, G. E. Condra
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Report On The Geology And Coals Of The Central City, Madisonville, Calhoun, And Newberg Quadrangles (In Muhlenberg, Hopkins, Ohio, Mclean, Webster, Daviess, And Henderson Counties), F M. Hutchinson
Bulletin--KGS
A report on coal viability and other natural resources in Central City, Madisonville, Calhoun, and Newburg Quadrangles (in Muhlenberg, Hopkins, Ohio, McLean, Webster, Daviess, and Henderson Counties), Kentucky.
- General Geology - pp 3 - 27
- Central City Quadrangle - pp 28 - 68
- Madisonville Quadrangle - pp 69 - 98
- Calhoun Quadrangle - pp 99 - 116
- Newberg Quadrangle - pp 117 - 127
Suggestions To Correspondents, E. H. Barbour
Suggestions To Correspondents, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A New Species Of Rhinoceros, "Diceratherium Loomisi," From The Lower Miocene Of Nebraska, H. J. Cook
A New Species Of Rhinoceros, "Diceratherium Loomisi," From The Lower Miocene Of Nebraska, H. J. Cook
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Suggestions To Correspondents, Erwin Hinckley Barbour
Suggestions To Correspondents, Erwin Hinckley Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A New Genus And Species Of Rhinoceros, Epiaphelops Virgasectus From The Lower Miocene Of Nebraska, H. J. Cook
A New Genus And Species Of Rhinoceros, Epiaphelops Virgasectus From The Lower Miocene Of Nebraska, H. J. Cook
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Faunal Lists Of The Tertiary Formations Of Sioux County, Nebraska, H. J. Cook
Faunal Lists Of The Tertiary Formations Of Sioux County, Nebraska, H. J. Cook
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A New Genus And Species Of Rhinoceros, Epiaphelops Virgasectus From The Lower Miocene Of Nebraska, Erwin Hinckley Barbour
A New Genus And Species Of Rhinoceros, Epiaphelops Virgasectus From The Lower Miocene Of Nebraska, Erwin Hinckley Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
An Account Of The Nebraska Geological Survey, Erwin Hinckley Barbour
An Account Of The Nebraska Geological Survey, Erwin Hinckley Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.