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Articles 39271 - 39300 of 39422
Full-Text Articles in Physical Sciences and Mathematics
Fifty-Fifth Annual Meeting Of The Iowa Academy Of Science And The Tenth Annual Convention Of The Junior Academy Of Science Of Iowa, April 25 And 26, 1941, Iowa Academy Of Science
Fifty-Fifth Annual Meeting Of The Iowa Academy Of Science And The Tenth Annual Convention Of The Junior Academy Of Science Of Iowa, April 25 And 26, 1941, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Tenth Annual Convention Of The Junior Academy Of Science Of Iowa, April 25 And 26, 1941, Iowa Academy Of Science
Tenth Annual Convention Of The Junior Academy Of Science Of Iowa, April 25 And 26, 1941, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Penetration Of The Walls Of Wood Cells By The Hyphae Of Wood-Destroying Fungi, Phimister Proctor Jr.
Penetration Of The Walls Of Wood Cells By The Hyphae Of Wood-Destroying Fungi, Phimister Proctor Jr.
Yale School of the Environment Bulletin Series
No abstract provided.
A New Fossil Bovid From Nebraska With Notice Of A New Bison Quarry In Texas, C. Bertrand Schultz
A New Fossil Bovid From Nebraska With Notice Of A New Bison Quarry In Texas, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
An interesting and unique bovid skull was reported to the staff of the University of Nebraska State Museum in 1938 by Mr. Alvin McReynolds of Nehawka, Nebraska. The specimen was found in 1933 in a ravine north of Nehawka by Messrs. Merritt and Harold Dodson, brothers. Although the skull was not in place, it appears to have been washed out of a nearby Pleistocene clay deposit by floodwaters. The specimen is well preserved and is of a dark brown, almost black color. In 1938 it was loaned to the Museum for study and photographing but was not obtained as a …
The Ancestral Ursid, Hemicyon, In Nebraska, Edwin H. Colbert
The Ancestral Ursid, Hemicyon, In Nebraska, Edwin H. Colbert
Bulletin of the University of Nebraska State Museum (1924–2023)
During the summer of 1928, a University of Nebraska State Museum field party, composed of Dr. A. L. Lugn and the writer, made a collection of upper Miocene and lower Pliocene mammals in Brown and Cherry counties, Nebraska. This collection was sponsored and made possible by the generosity of the late Hon. Charles H. Morrill.
A Shovel-Tusked Mastodon, Arnebelodon Fricki, From Kansas, Erwin Hinckley Barbour, Claude W. Hibbard
A Shovel-Tusked Mastodon, Arnebelodon Fricki, From Kansas, Erwin Hinckley Barbour, Claude W. Hibbard
Bulletin of the University of Nebraska State Museum (1924–2023)
Since the Amebelodontinae were first announced (Barbour 1927), a number of examples of the genus Amebelodon have presented themselves in various parts of Nebraska, Colorado, and in several places in Kansas. Thus its range has already been materially extended, many skeletal parts added, and the hope kindled that knowledge of this remarkable group of proboscideans is destined to be greatly enriched within the next few years. As may be seen in the accompanying lists of the known parts of Amebelodon preserved in various museums, there are already at hand the bones necessary for the assemblage of a nearly complete composite …
A New Species Of Sphenophalos From The Upper Ogallala Of Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz
A New Species Of Sphenophalos From The Upper Ogallala Of Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
The genus Sphenophalos was described by John C. Merriam (1909, p. 319-30), who based his description on a fragmentary horn-core (Uni. of Calif. No. 11887) from the late Tertiary deposits near Thousand Creek in northern Humbolt county, Nevada. Knowledge of Sphenophalos, however, is still confined to this single, fragmented type horn-core (Frick 1937, p. 472) and other fragmental specimens (Furlong 1932, p. 27-36).
The Pipy Concretions Of The Arikaree, C. Bertrand Schultz
The Pipy Concretions Of The Arikaree, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
The pipy concretions of the Arikaree (lower Miocene) of Nebraska and adjacent states were first described by Nelson Horatio Darton (1899, p. 743) as "characteristic layers of hard, fine-grained, dark-gray concretions, often consisting of aggregations of long, irregular, cylindrical masses" (see Figures 30, 32, 34, and 35). The individual pipes vary in diameter from a few inches to several feet, and in length from a few inches to a hundred yards or more. Tests demonstrate that pipy concretions are composed of sand cemented by calcium carbonate. When dipped in acid the cement is dissolved and the concretion is reduced to …
Fifty-Fourth Annual Meeting Of The Iowa Academy Of Science And The Ninth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1940, Iowa Academy Of Science
Fifty-Fourth Annual Meeting Of The Iowa Academy Of Science And The Ninth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1940, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Asterolecanium Variolosum Ratzeburg, A Gall-Forming Coccid, And Its Effect Upon The Host Trees, Thaddeus Parr
Asterolecanium Variolosum Ratzeburg, A Gall-Forming Coccid, And Its Effect Upon The Host Trees, Thaddeus Parr
Yale School of the Environment Bulletin Series
No abstract provided.
Disturbance Of Forest Soil Resulting From The Uprooting Of Trees, Harold J. Lutz
Disturbance Of Forest Soil Resulting From The Uprooting Of Trees, Harold J. Lutz
Yale School of the Environment Bulletin Series
No abstract provided.
A Study Of The Kjeldahl Method And A Modification For The Determination Of Nitrogen In Alcoholic Distillates., Margie M. Miller
A Study Of The Kjeldahl Method And A Modification For The Determination Of Nitrogen In Alcoholic Distillates., Margie M. Miller
Electronic Theses and Dissertations
No abstract provided.
Fifty-Third Annual Meeting Of The Iowa Academy Of Science And The Eighth Annual Convention Of The Junior Academy Of Science Of Iowa, April 21 And 22, 1939, Iowa Academy Of Science
Fifty-Third Annual Meeting Of The Iowa Academy Of Science And The Eighth Annual Convention Of The Junior Academy Of Science Of Iowa, April 21 And 22, 1939, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
The White River Oligocene Rodent Diplolophus, Erwin Hinckley Barbour, Thompson M. Stout
The White River Oligocene Rodent Diplolophus, Erwin Hinckley Barbour, Thompson M. Stout
Bulletin of the University of Nebraska State Museum (1924–2023)
The rich and varied nature of the mammalian faunas of the White River Oligocene has been recognized for many years, but the exact geologic succession is only now becoming known. In these faunal assemblages the rodents and lagomorphs appear to have been important elements, perhaps numerically as abundant in the Oligocene as are these same groups at present.
A New Giant Camel Gigantocamelus Fricki, Gen. Et Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
A New Giant Camel Gigantocamelus Fricki, Gen. Et Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
A lower Pleistocene deposit containing fossil vertebrates near Broadwater, Morrill county, Nebraska, has been reported upon by the writers, beginning three years ago. Five fossil quarries have been opened since the site was discovered in 1936.
A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood
A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood
Nebraska Agricultural Experiment Station: Historical Research Bulletins
It is the object of this paper to present a method for classifying and evaluating the soils as mapped in regular soil surveys on the basis of land types, which are here defined as areas having reasonably similar productivity and use suitabilities. The standards used to differentiate land types will vary according to the desired objectives, but any material difference in yield, or in practices necessary to maintain a desirable level of productivity will justify recognition of land types. The proposed procedure involves a more detailed study of the influence which soils, slope, erosion, and drainage have on specific crops …
Fifty-Second Annual Meeting Of The Iowa Academy Of Science And The Seventh Annual Convention Of The Junior Academy Of Science Of Iowa, April 15 And 16, 1938, Iowa Academy Of Science
Fifty-Second Annual Meeting Of The Iowa Academy Of Science And The Seventh Annual Convention Of The Junior Academy Of Science Of Iowa, April 15 And 16, 1938, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
List Of Twenty-Two Species Of Monogenetic Trematodes From The South Pacific, F. G. Meserve
List Of Twenty-Two Species Of Monogenetic Trematodes From The South Pacific, F. G. Meserve
Journal of the Minnesota Academy of Science
No abstract provided.
A Preliminary Report On A Study Of College Science Courses Considered Valuable By High School Science Teachers, G. M. Wissink
A Preliminary Report On A Study Of College Science Courses Considered Valuable By High School Science Teachers, G. M. Wissink
Journal of the Minnesota Academy of Science
No abstract provided.
The Search For Natural History Areas In Minnesota, A. N. Wilcox, W. J. Breckenridge, R. L. Donovan, T. B. Magath, H. E. Stork, Gustav Swanson
The Search For Natural History Areas In Minnesota, A. N. Wilcox, W. J. Breckenridge, R. L. Donovan, T. B. Magath, H. E. Stork, Gustav Swanson
Journal of the Minnesota Academy of Science
No abstract provided.