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Articles 38761 - 38790 of 38959
Full-Text Articles in Physical Sciences and Mathematics
The Goss Lemming Mouse, Synaptomys Cooperi Gossii (Goues), In Nebraska, Edson Fichter, Merle F. Hansen
The Goss Lemming Mouse, Synaptomys Cooperi Gossii (Goues), In Nebraska, Edson Fichter, Merle F. Hansen
Bulletin of the University of Nebraska State Museum (1924–2023)
In the course of studies on the cestode parasites of microtine rodents by one of the authors (Hansen), specimens of mice were sent to the United State National Museum where they were identified by Dr. David H. Johnson. Two of these microtines proved to be Synaptomys cooperi gossii (Coues). These specimens of Synaptomys (U.S.N.M. Nos. 282343 and 282344), collected at Lincoln, Lancaster County, Nebraska, on September 16, 1946 (male) and November 20, 1946 (female), respectively, are the first ones to be identified from Nebraska.
The Geologic History Of The Bison In The Great Plains (A Preliminary Report), C. Bertrand Schultz, W. D. Frankforter
The Geologic History Of The Bison In The Great Plains (A Preliminary Report), C. Bertrand Schultz, W. D. Frankforter
Bulletin of the University of Nebraska State Museum (1924–2023)
THE GEOLOGIC history of the bison in North America is a subject which has received little attention to date. Osteological rather than geological problems have been the main concern of most writers who have so far published. If the geologic history of the bison is to be learned, it will be necessary to devote more time and effort in the field in determining the age of the deposits in which various specimens have been discovered and in making more extensive collections from deposits of known age. Unfortunately the majority of the type specimens have been surface finds and little attempt …
The Fifty-Eighth Session Of The Iowa Academy Of Science And The Thirteenth Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1946, Iowa Academy Of Science
The Fifty-Eighth Session Of The Iowa Academy Of Science And The Thirteenth Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1946, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Tertiary Coniferous Woods Of Western North America, George F. Beck
Tertiary Coniferous Woods Of Western North America, George F. Beck
All Faculty Scholarship for the College of the Sciences
Almost four decades have elapsed since Platen (1908), the German paleobotanist, published his report upon the fossil woods of the western United States. Since then no over-all treatment of these materials has been attempted. although Platen overlooked the Pacific Northwest with its abundance of Tertiary petrified woods. The purpose of this paper is to bring knowledge of the western coniferous woods of the Tertiary up to date. In this effort the writer recognizes that much of this information has been accumulated incidentally in the study of the Russell Petrified Forest series of central Washington, and that it is not as …
Range Land Of America And Some Research On Its Management, Laurence A. Stoddart
Range Land Of America And Some Research On Its Management, Laurence A. Stoddart
Faculty Honor Lectures
Although grazing of livestock has been a practice and a profession of man almost from his beginning only recently has range management reached anything approaching a pre~ cise science. Although ' trials and errors over the years brought to light much practical methodology for assuring high production from grazing land, still it remained for the plant physiologist and ecologist to find the whys and wherefores, and to advance new methods and new thoughts which promise to increase productivity still further and at the same time maintain the great range resource.
The peculiar land situation that marked America in her forma~ …
Progress Report On The Ground-Water Resources Of The Las Vegas Artesian Basin, Nevada, George B. Maxey, C. Harry Jameson
Progress Report On The Ground-Water Resources Of The Las Vegas Artesian Basin, Nevada, George B. Maxey, C. Harry Jameson
Publications (WR)
Whether the tremendously increased population acquired by Las Vegas in the years 1940 to 1942 will be retained cannot at present be foretold. However, the valley will undoubtedly be expected to support a considerably larger population than it did at any time prior to 1940, and continually increasing demands on the water supply for innumerable pcacetimc activities must be anticipated. Therefore, a sound evaluation of tho ground water resources of Las Vegas Valley is directly in line with the other wisely progressive planning programs which are now operating or are taking shape in the valley as well as in the …
Nyssa Woods Of The Pacific-Northwest Tertiary, George F. Beck
Nyssa Woods Of The Pacific-Northwest Tertiary, George F. Beck
All Faculty Scholarship for the College of the Sciences
The nyssa gums are one of the modern genera of trees most certainly present among the petrified woods and forests of the Pacific Northwest. Almost every collection from the mid-Tertiary of this region contains a few specimens of typical tupelo or sour gum. These are fine-grained woods which to the unaided eye may be mistaken for conifers.
The Yale Forest In Tolland And Windham Counties, Connecticut, Walter H. Meyer, Basil A. Plusnin
The Yale Forest In Tolland And Windham Counties, Connecticut, Walter H. Meyer, Basil A. Plusnin
Yale School of the Environment Bulletin Series
No abstract provided.
A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006
A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006
Electronic Theses and Dissertations
No abstract provided.
Ancient Maples Of The Central Washington Region, George F. Beck
Ancient Maples Of The Central Washington Region, George F. Beck
All Faculty Scholarship for the College of the Sciences
When I began work on the petrified logs of the general Vantage area some 13 years ago, it became apparent at once that maple-like woods are commonplace in the main (Vantage) raft forest and slightly less abundant in two rooted units of the Yakima Canyon. So widely do these woods range throughout the structural variations found in modern maples that little success has attended the efforts to assign them to nominal species. The extremes can readily be established but few hints exist as to the boundaries between them.
The Fifty-Seventh Session Of The Iowa Academy Of Science, April 15, 1944, Iowa Academy Of Science
The Fifty-Seventh Session Of The Iowa Academy Of Science, April 15, 1944, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Two Newly Discovered Conifers, George F. Beck
Two Newly Discovered Conifers, George F. Beck
All Faculty Scholarship for the College of the Sciences
Two genera of coniferous wood, apparently not listed among the Tertiary woods of the western states, have been recognized in the Percy Train collections from Rainbow Ridge, northwestern Nevada. These two, Tsuga (hemlock) and Chamaecyparis (cedar) bring up to 14 the genera of coniferous wood more or less certainly identified from the period and area in question.
Status Of Tertiary Woods Of The Western States Representing The Juglandaceae, George F. Beck
Status Of Tertiary Woods Of The Western States Representing The Juglandaceae, George F. Beck
All Faculty Scholarship for the College of the Sciences
For many years there has been uncertainty concerning the generic status of some fossil leaves belonging without question to the walnut family as a whole. A review of the woods of Juglandaceae as they have appeared in Tertiary horizons of the western states has suggested which genera are present, and in what proportions their leaves (or other remains) might be expected to appear.
Volume Tables For Connecticut Hardwoods, Walter H. Meyer, Raymond Kienholz
Volume Tables For Connecticut Hardwoods, Walter H. Meyer, Raymond Kienholz
Yale School of the Environment Bulletin Series
No abstract provided.
Nitrate Production As Affected By Grain-Crop Residues On The Surface Of The Soil, T. M. Mccalla, J. C. Russel
Nitrate Production As Affected By Grain-Crop Residues On The Surface Of The Soil, T. M. Mccalla, J. C. Russel
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The purpose of this bulletin is to present the data on nitrate contents and nitrate production in tests where straw or stalk residues were left on the surface through subsurface tillage, as compared with check treatments where these residues were plowed under or were absent. Nine of these tests were at Lincoln, Nebraska, and one was at the Hastings, Nebraska, Hydrological Project. Two tests were conducted in 1939, four in 1941, and four in 1942.
Preliminary Report On Subtratum Temperature Studies On Root Growth, Stanley W. Oexemann
Preliminary Report On Subtratum Temperature Studies On Root Growth, Stanley W. Oexemann
Journal of the Minnesota Academy of Science
No abstract provided.