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Articles 57811 - 57840 of 59555
Full-Text Articles in Entire DC Network
Whole Issue Nebraska Bird Review (July 1950) 18(3)
Whole Issue Nebraska Bird Review (July 1950) 18(3)
Nebraska Bird Review
Contents
Twenty-five Year Summary of Bird Migration in Nebraska, Part 3 - Ducks ................William F. Rapp, Jr .................41
The Distribution of Field Observations on Nebraska Birds During the Last Fifty Years ••• Thomas B. Thorson .................... 47
Ornithology in Nebraska Colleges and Universities Ramona E. Dreyer and William F. Rapp, Jr ....................48
Least Tern ....................Photographed by Ray S. Wycoff, Lexington, Nebraska ....................50
Minutes of the Forty-Ninth Annual Meeting of The Nebraska Ornithologists' Union ....................52
Announcements & General Notes ....................56
Book Reviews ....................60
The North Texas Species Of Plantago (Plantaginaceae), Lloyd H. Shinners
The North Texas Species Of Plantago (Plantaginaceae), Lloyd H. Shinners
Field and Laboratory
The Plantaginaceae of Texas have been partly or wholly revised by five authors successively: Decaisne in 1852, Gray in 1878, Morris in 1900, 1901, and 1903, Poe in 1928, and Pilger in 1937. None of these revisions is very satisfactory, partly because of reliance on quite unreliable characteristics such as color of plant after drying or number of seeds, partly because of lack of knowledge of distribution patterns of Texas plants, and partly because of limited collections or because different collections were distributed under the same number. In the following synopsis, though written only for the counties of north central …
Health And Safety : A Manual For 4-H Club Members, Agricultural Extension Service, South Dakota State College
Health And Safety : A Manual For 4-H Club Members, Agricultural Extension Service, South Dakota State College
SDSU Extension Circulars
This bulletin on Health and Safety will help you see things that you can do to make your community a safer and a healthier place in which to live. You will find suggestions on activities that you as a club member can do to help improve health conditions for yourself and for your family. It will suggest activities that can be carried out by your club to make your community a healthier community for everyone living there. In addition, because the health of an individual is so closely tied up with safety measures, there will be suggestions that might help …
Some Factors Which May Influence Survival Of Game Farm-Reared Pheasants After Release Into The Wild, Taylor F. Cottle
Some Factors Which May Influence Survival Of Game Farm-Reared Pheasants After Release Into The Wild, Taylor F. Cottle
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study was undertaken in an attempt to determine some of the factors which may influence the survival of Utah game farm-reared pheasants following their release into the wild. The survival of these birds is below the desired level after they are released, as is indicated by the low percentage taken by the sportsmen during the hunting season. In recent years the return from released game farm-reared pheasants is about 7 to 8 percent.1 Consequently, if survival rate of these birds could be increased, more birds would be available to supplement the wild stock. Also, an increase in the …
Microradiography With Biological Specimens, Arthur D. Wellman
Microradiography With Biological Specimens, Arthur D. Wellman
Bachelors’ Theses
Microradiography is a technique in which X-rays are directed through a very thin specimen onto a fine-grained photographic film and the image examined under magnification. It has been used chiefly as a supplementary tool in industrial analysis of metal structures, and even in this field has attained prominence only within the past decade. Its usefulness is limited to fine structures (except where minute flaws or impurities are to be examined in a material), and its success is limited by the degree of clarity in the radiograph to be magnified.
Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek
Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Logan River, one of Utah's better trout streams, has carried more than its share of the increased fishing pressure of the past few years. Careful management of the drainage by the U.S. Forest Service has kept the Logan River free of serious water fluctuations and relatively unpolluted by silt and wastes. The only noticeable fluctuations in the stream is the annual runoff cycle which usually reaches its peak in May. This alone has contributed greatly to the ability of the river to withstand the increased fishing pressure which it has done quite well. The increase in fishing pressure can …
Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek
Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Logan River heads in the southeastern corner of Franklin County, Idaho, and runs in a south and westerly direction. It enters the state of Utah through the northern boundary in the northeast corner of Cache County. The main stream is fed by two tributary streams which head in separate directions a few miles apart. The Franklin Basin branch is the main contributing tributary while the Beaver Creek branch is nearly as large.
Inheritance Of Certain Characters And The Linkage Relationships Of Factors On Chromosome Iv In Barley, Claude J. Jenkins
Inheritance Of Certain Characters And The Linkage Relationships Of Factors On Chromosome Iv In Barley, Claude J. Jenkins
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Plant breeding and the development of new or better varieties of plants are essential parts of modern agronomy, horticulture and forestry. The basis for such improvement is a knowledge of the factors and principles of genetics.
A number of genetic studies have been made with barley in recent years. This is partly because of the commercial importance of the crop, and partly because of the many distinct heritable characters of barley plants. The cultivated species of barley offers the plant breeder and geneticist a wealth of material for genetic studies. Varieties differ in a great many readily distinguishable characters, species …
Inheritance Of Resistance To Races Of Covered Smut, Awns, And Chaff Color In A Wheat Cross, Nazar Singh Dhesi
Inheritance Of Resistance To Races Of Covered Smut, Awns, And Chaff Color In A Wheat Cross, Nazar Singh Dhesi
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Wheat is the most important cereal crop in the world. It is the principal staple food in Russia, United States, China, Canada, India and a number of other countries.
Covered smut is one of the most serious disease of wheat all over the world. According to Woolman and Humphrey (82) it was known from very early times and is referred to by Theoprastus and other early Greek Roman writers.
The Bunt Problem In Relation To Winter Wheat Breeding, Delmar C. Tingey
The Bunt Problem In Relation To Winter Wheat Breeding, Delmar C. Tingey
Faculty Honor Lectures
Man is forever in search of new and better crops. He has for centuries been a persistant and fairly successful plant . breeder. Ancient Chinese are credited with breeding superior varieties of rice and hybrid flowers. Indians in America produced remarkable varieties of corn, and it was not until modern corn breeders developed "hybrid corn" that they produced superior yielding varieties.
The discovery of Mendel's work on hybridization 50 years ago pointed the way to almost limitless possibilities in plant improvement through breeding. Mendel discovered that if two related individuals were hybridized, it was possible in later generations to obtain …
A New Elasmosaur From The Eagle Ford Shale Of Texas: The Elasmosaur And Its Environment, Ellis W. Shuler
A New Elasmosaur From The Eagle Ford Shale Of Texas: The Elasmosaur And Its Environment, Ellis W. Shuler
Fondren Science Series
When Mr. Andy Anderson donated to Southern Methodist University the petrified skeleton of a great marine lizard found on his plantation near Cedar Hill, Texas, he said, "Write about it so common folks can understand." In view of this request, the description of this new and important specimen has been divided into two parts. Part I is a technical description of the skeleton written by S. P. Welles, Principal Museum Paleontologist, University of California (Berkeley), an authority on the elasmosaur group to which the specimen belongs. Mr. Welles completed his manuscript, Part I of Number 1 in the Fondren Science …
Vegetative Key To Texas Desmanthus (Leguminosae) And Similar Genera, B. L. Turner
Vegetative Key To Texas Desmanthus (Leguminosae) And Similar Genera, B. L. Turner
Field and Laboratory
There are several genera of Mimosoideae in Texas that resemble each other, especially when only the flowers are present. Probably the plants most frequently wrongly identified in the genus Desmanthus are Acacia hirta Nutt. and A. texensis T.&G. (A. cuspidata Sehl.), followed closely by the prostrate plants of Neptunia. Other similar Texas genera are Calliandra, Hoffmanseggia, Schrankia, and Mimosa strigillosa T.&G. The following vegetative key is designed as a quick aid to place species of this complex of plants in their proper places when flowers and/or fruit are absent.
Texas Species Of Desmanthus (Legurminosae), B. L. Turner
Texas Species Of Desmanthus (Legurminosae), B. L. Turner
Field and Laboratory
The Texas species of Desmanthus (nomen conservandum), as treated in the present paper, total nine, one of which has two varieties. Six of these are found almost exclusively within the state.
The Species Of Matelea (Including Gonolobus) In North Central Texas (Asclepiadaceae), Lloyd H. Shinners
The Species Of Matelea (Including Gonolobus) In North Central Texas (Asclepiadaceae), Lloyd H. Shinners
Field and Laboratory
MATELEA gonocarpa (Walter) Shinners, comb. nov. Vincetoxicum gonocarpos Walt., Fl. Carol. 104. 1788. (Emend. Gray and Perry.) Gonolobus gonocarpos (Walt.) Perry, Rhodora 40: 284. 1938.
The Texas Species Of Cacalia (Compositae), Lloyd H. Shinners
The Texas Species Of Cacalia (Compositae), Lloyd H. Shinners
Field and Laboratory
No abstract provided.
Variations In The Vertebrae And Pelvis Of Necturus, Joseph P. Harris Jr.
Variations In The Vertebrae And Pelvis Of Necturus, Joseph P. Harris Jr.
Field and Laboratory
In most specimens of Necturus, the nineteenth vertebra serves as the sacrum; the iliac processes of the pelvic girdle articulate with it. In a number of specimens, Vertebra XX or (less frequently) Vertebra XVIII serves as the sacrum. But not always do the two iliac processes join the same vertebra. The iliac process of the left side may join the XVIII, XIX, or XX vertebra. The converse may also occur.
Bulletin No. 338 - Nutrient Deficiencies In Utah Orchards, D. W. Thorne, F. B. Wann
Bulletin No. 338 - Nutrient Deficiencies In Utah Orchards, D. W. Thorne, F. B. Wann
UAES Bulletins
When farm products are sold, some of the essential part of the soil are also marketed. If this process is continued, the soil may be eventually impoverished to the point where it cannot support high crop yields. In addition to direct soil depletion, unbalanced soil management practices may produce soil conditions that prevent or limit the uptake of certain elements by plants even though there may be enough total supply of the elements present to last hundreds or even thousands of years.
Both processes have been going on in many Utah orchards. Sale of fruit has gradually depleted the soil. …
Whole Issue Nebraska Bird Review (April 1950) 18(2)
Whole Issue Nebraska Bird Review (April 1950) 18(2)
Nebraska Bird Review
Contents
Twenty-five Year Summary of Bird Migration in Nebraska, Part 2.....William F. Rapp, Jr. ..............23
News and Notes ..............25
Report of the Membership Committee 29
Wildfowl Sketches....C.G. Pritchard ..............30
Announcements ..............32
General Notes ..............32
Periodicals in the Nebraska Ornithologists' Union Library ..............36
Book Reviews ..............39
Rodent Populations And Activities On A Moderately Grazed Mixed Prairie Near Hays, Kansas, John L. Paulk
Rodent Populations And Activities On A Moderately Grazed Mixed Prairie Near Hays, Kansas, John L. Paulk
Master's Theses or Doctor of Nursing Practice
The purpose of this investigation was to study rodent populations on a moderately grazed mixed prairie. A working knowledge of the activities of these small mammals, has satisfied to a certain degree the curiosity of the writer. So little work has been done in this plains region that the author felt the need for such an investigation, and hoped to arouse the interest of others along similar lines.
Science And Supposition In Evolution, Geology, And Astronomy, D. A. Sommer
Science And Supposition In Evolution, Geology, And Astronomy, D. A. Sommer
Stone-Campbell Books
No abstract provided.
Bulletin No. 342 - The Nutritive Content Of The Grazing Sheep's Diet On Summer And Winter Ranges Of Utah, C. Wayne Cook, Lorin E. Harris
Bulletin No. 342 - The Nutritive Content Of The Grazing Sheep's Diet On Summer And Winter Ranges Of Utah, C. Wayne Cook, Lorin E. Harris
UAES Bulletins
Approximately two million sheep graze the native ranges of Utah each year. These animals are on the range most of the year and their food supply must come from range plants as they are normally selected. The nutritive value of range forage is often borderline or deficient in essential nutrients, yet, sufficiently adequate to prevent obvious physiological disorders. These mild deficiencies may affect the productive efficiency of the animal even though no symptoms are apparent.
Agricultural Research In South Dakota: Sixty-Third Annual Station Report, July 1, 1949 - June 30, 1950, South Dakota State College Of Agriculture And Mechanic Arts
Agricultural Research In South Dakota: Sixty-Third Annual Station Report, July 1, 1949 - June 30, 1950, South Dakota State College Of Agriculture And Mechanic Arts
Agricultural Experiment Station and Research Farm Annual Reports
No abstract provided.
Pugillus Astragalorum Xii: Some Problems In California, R. C. Barneby
Pugillus Astragalorum Xii: Some Problems In California, R. C. Barneby
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Agricultural Problems Of India., Teja Singh Gill
Agricultural Problems Of India., Teja Singh Gill
LSU Historical Dissertations and Theses
No abstract provided.
Tables Illustrating Biparental Crossing-Over In Genetics, S. W. Geiser
Tables Illustrating Biparental Crossing-Over In Genetics, S. W. Geiser
Field and Laboratory
Students of elementary genetics frequently are called upon to calculate the theoretical distribution into phenotypic and genotypic classes, of populations resulting from divers crosses with linked genes, say (A and B).
Notes On Texas Compositae - V, Lloyd H. Shinners
Notes On Texas Compositae - V, Lloyd H. Shinners
Field and Laboratory
No abstract provided.
Dimension Stock And Other Uses Of Aspen, Alexis J. Panshin
Dimension Stock And Other Uses Of Aspen, Alexis J. Panshin
Aspen Bibliography
Utilization of aspen for pulpwood, excelsior bolts, veneer logs and lumber has increased steadily during the past 10 years. This was particularly true during the war years when, because of the scarcity of other timber, aspen entered many new phases of utilization. In the lumber field alone the wider acceptance of aspen has been reflected in an increase in the annual production from 67 million board feet in 1941 to 152 million board feet in 1946. It is estimated, however, that aspen stands in the Lake States can provide an annual cut of at least 300 million board feet of …
How To Be A Successful Hostess, Constance Spry, Rosemary Hume
How To Be A Successful Hostess, Constance Spry, Rosemary Hume
Pamphlets
Advice for the home maker produced under the auspices of "Housewife: the practical women's magazine ". Includes advertisements for Maggi Extra Soups, Bristol Sherry, Stork Wives Club, Doulton Fine China Ltd., Gonzalez Byass Sherry, Drambuie, Carrs Water Biscuits, Nescafe
Please note the date is approximate
South Dakota Farm And Home Research, Agricultural Experiment Station
South Dakota Farm And Home Research, Agricultural Experiment Station
South Dakota Farm and Home Research: 1949 -1998
Liquid Seed Treatment Reduces Hazard [p] 25
Deep Freeze or Locker Plant Meat [p] 29
Fruits and Vegetables in the Home Freezer [p] 32
Looking Ahead to Irrigation [p] 34
Project Families Like Irrigation Farming [p] 36
Norghum—Its Feed Value for Lambs [p] 40
Controlling Heel Flies and Cattle Grubs [p] 43
Weed Control [p] 46
New Fruit Trees for South Dakota [p] inside back cover
Manual Of The Grasses Of The United States, Second Edition, A. S. Hitchcock, Agnes Chase
Manual Of The Grasses Of The United States, Second Edition, A. S. Hitchcock, Agnes Chase
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
By the late A. S. HITCHCOCK (died December 16, 1935), principal botanist, Division of Plant Exploration and Introduction; second edition revised by AGNES CHASE, formerly senior botanist and later collaborator, Division of Plant Exploration and Introduction, Bureau of Plant Industry, Soils, and Agnculturat Engineering, Agricultural Research Administration, and research associate, United States National Museum, Smithsonian Institution.
Of all the plants of the earth the grasses are of the greatest use to the human race. To the grasses belong the cereals, sugarcane, sorghum, and the bamboos; and, since they furnish the bulk of the forage for domestic animals, the grasses are …