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Articles 112981 - 113010 of 114006
Full-Text Articles in Entire DC Network
Ec1106 Control Methods For Household Pests
Ec1106 Control Methods For Household Pests
University of Nebraska-Lincoln Extension: Historical Materials
Extension circular 1106 provides information on control methods for household pests, which include house flies, mosquitoes, house ants, clothes moths, carpet beetles, cockroaches, crickets, silverfish, food infesting insects, aphids or lice on house plants, boxelder bugs, and rats and mice.
Test 087: International 15-30 Gear Drive, Nebraska Tractor Test Lab
Test 087: International 15-30 Gear Drive, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Test 086: Holt T-35 15-25, Nebraska Tractor Test Lab
Test 086: Holt T-35 15-25, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Test 084: Rogers, Nebraska Tractor Test Lab
Test 084: Rogers, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Test 085: Cletrac "F" 9-16, Nebraska Tractor Test Lab
Test 085: Cletrac "F" 9-16, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Relation Of Hardpan To Root Penetration In The Great Plains, J. E. Weaver, John Crist
Relation Of Hardpan To Root Penetration In The Great Plains, J. E. Weaver, John Crist
Department of Agronomy and Horticulture: Faculty Publications
During the excavation of root systems of native and crop plants through- out the Great Plains region during the past five years (Weaver, 1919,1920, 1922) contact has been made in more than thirty fields with the so-called hardpan. Such a layer of soil underlies much of this area of low rainfall, at depths varying from 15 inches to 3 feet. It varies from 8 inches to over 1.5 feet in thickness. In connection with studies on the physical and chemical composition of the soils and their seasonal water-content under natural and cropped conditions, a more detailed study has been made …
Development And Activities Of Roots Of Crop Plants: A Study In Crop Ecology, J. E. Weaver, Frank C. Jean, John W. Crist
Development And Activities Of Roots Of Crop Plants: A Study In Crop Ecology, J. E. Weaver, Frank C. Jean, John W. Crist
Department of Agronomy and Horticulture: Faculty Publications
Introduction
I. INVESTIGATIONS AT PERU, NEBRASKA, IN 1919.
University No. 21 oats, Avena sativa
Swedish Select oats, Avena sativa
Durum wheat, Triticum durum
Marquis wheat, Triticum aestivum
Manchuria barley, Hordeum vulgare
Corn, Zea mays indentata
Earlier investigations of corn
Potato, Solanum tuberosum
Earlier investigations of potatoes
Comparison of root systems
Environmental conditions of growth
Summary of root development
II. INVESTIGATIONS AT LINCOLN, NEBRASKA, IN 1919 AND 1920.
Oats, Avena sativa
Barley, Hordeum vulgare
Wheat, Triticum aestivum
Alfalfa, Medicago sativa
Sweet clover, Melilotus alba
Comparison of root systems
III. INVESTIGATIONS AT PHILLIPSBURG, KANSAS, IN 1920.
Oats, Avena sativa
Barley, Hordeum vulgare …
Genetic Interrelations Of Two Andromonoecious Types Of Maize, Dwarf And Anther Ear, R. A. Emerson, Sterling H. Emerson
Genetic Interrelations Of Two Andromonoecious Types Of Maize, Dwarf And Anther Ear, R. A. Emerson, Sterling H. Emerson
Department of Agronomy and Horticulture: Faculty Publications
Attention was called by Montgomery (1906)to the occasional appearance
of perfect flowers in the staminate inflorescence of maize and similar
cases were reported by Kempton (1913). Montgomery (1911) described
with illustrations a true-breeding type of semi-dwarf dent maize, the ears
of which were perfect-flowered. Perfect-flowered maize was described
and illustrated also by Blaringhem (1908, pp. 180-183). East and
Hayes (1911, pp. 13, 14) noted and illustrated a perfect-flowered sweet
corn. Weatherwax (1916, 1917) showed that typically pistillate
flowers of maize exhibit in microscopic sections the rudiments of stamens
and that staminate flowers show rudiments of pistils.
The Physiology Of The Respiration Of Fishes In Relation To The Hydrogen Ion Concentration Of The Medium, Edwin B. Powers
The Physiology Of The Respiration Of Fishes In Relation To The Hydrogen Ion Concentration Of The Medium, Edwin B. Powers
Papers in Systematics and Biological Diversity
Within recent years much has been added to the knowledge concerning the mechanism of the respiratory function of the blood. Haldane and Priestley (1905) have shown that, at least in the higher animals, the respiratory movements are affected by the carbon dioxide tension of the arterial blood. It has been shown definitely (Hasselbalch, 1912 and citations) that the exciting agent is the hydrogen ion concentration of the blood bathing the respiratory center.
Krogh and Leitch (1919) undertook to study the respiratory function of the blood of fishes in view of the knowledge of the influence of temperature upon the dissociation …
The Flat-Headed Apple-Tree Borer, Fred E. Brooks
The Flat-Headed Apple-Tree Borer, Fred E. Brooks
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The flat-headed apple-tree borer, a serious orchard pest throughout the greater part of United States, is found from the Atlantic to Pacific and from Florida and Texas to Canada.
The larva, or grub, of this insect (which in the adult stage is a medium-sized beetle) bores in the bark and wood of a great variety of trees, but is best known as an enemy of apple, pear, peach, and other cultivated fruit trees. Its depredations are felt in almost every locality where orchards have been planted.
Fortunately, this borer almost invariably confines its attacks to the sunny sides of trees …
Test 654: Ford 851-D, Nebraska Tractor Test Lab
Test 654: Ford 851-D, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT:
TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.
This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker, point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.
BELT HORSEPOWER TESTS
TEST B: The throttle …
New Species And Collections Of Arrhenuri: 1921, Ruth Marshall
New Species And Collections Of Arrhenuri: 1921, Ruth Marshall
School of Biological Sciences: Faculty Publications
The genus Arrhenurus, the largest group of the water mites, continues to yield new material from collections in lake regions. The new species described in this paper came from regions as far apart as Canada and China; while additional notes on already described species are based on material secured in several states of northeastern United States, some of them from new localities. Through the kindness of Professor N. Gist Gee, of Soochow University, material was secured for the description of new species from China. Professor Frank Smith and Dr. H. R. Vancleave, of the University of Illinois, were good enough …
The Spirit Of The Common Law, Roscoe Pound
The Spirit Of The Common Law, Roscoe Pound
Nebraska College of Law: Faculty Publications
These lectures speak in large part from the second decade of the present [20th] century; and they show the faith in the efficacy of effort and belief that the administration of justice may be improved by conscious intelligent action which characterized that time. The recrudescence of juristic pessimism in the past three years has not led me to abandon that point of view. At the end of the nineteenth century lawyers thought attempt at conscious improvement was futile. Now many of them think it is dangerous. In the same way the complacent nothing-needs-to-be-done attitude of Blackstone, who in the spirit …
Agate Anticline, Sioux County, Nebraska, E. F. Schramm, H. J. Cook
Agate Anticline, Sioux County, Nebraska, E. F. Schramm, H. J. Cook
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Vegetation Mapping, Paul B. Sears
Vegetation Mapping, Paul B. Sears
Papers in Ecology
The value of accurate maps of native vegetation as a basis for very practical generalizations can not be questioned. It is obvious that an essential condition for getting accurate maps of large areas is the existence of precise maps of smaller component ones. At present very few precise local maps are available, but it is to be hoped that botanists throughout the country will begin to supplement the efforts of a few of their number who are doing map work of permanent and general' value.
The Regional Adaptation Of Corn In Nebraska, T. A. Kiesselbach, F. D. Keim
The Regional Adaptation Of Corn In Nebraska, T. A. Kiesselbach, F. D. Keim
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The purpose of this investigation was to determine some of the factors involved in the regional adaptation of corn. The procedure has been to make a comparative study of native corn types, known to be locally adapted to various regional areas in Nebraska through long growth there. The work has been confined to the single species group - Zea mays indentata. No one variety of a common source is grown throughout the state, and therefore it has been impossible to keep within a single variety. It would appear that the data should indicate morphological and histological plant characteristics involved …
The Nebraska Tractor Law And Rules For Official Tractor Tests, O. W. Sjogren, E. E. Brackett, C. W. Smith, F. R. Nohavec
The Nebraska Tractor Law And Rules For Official Tractor Tests, O. W. Sjogren, E. E. Brackett, C. W. Smith, F. R. Nohavec
Nebraska Agricultural Experiment Station: Historical Circulars
The Nebraska Tractor Law, which became effective July 15, 1919, was enacted to encourage the manufacture and sale of improved types of tractors and to contribute to a more successful use of the tractor for farming. It was thought that the best method of accomplishing these objects would be to require a tractor of each model sold in the State to be tested at the State University and to have the results of these tests made public.
A New Blood Fluke From Turtles, Henry Baldwin Ward
A New Blood Fluke From Turtles, Henry Baldwin Ward
Harold W. Manter Laboratory of Parasitology: Library Materials
For several years an interesting trematode has been under observation in the laboratory here. It occurs in various species of turtles, and was first discovered in some material shipped in from the south for class work. Peculiar importance attaches to the fact that it is a species inhabiting the circulatory system, and in fact it shows a relationship to the blood-inhabiting flukes of man which has become more clearly evident as the observations have accumulated. Since the material is easily obtained, it will afford perhaps the best opportunity available in this country for the laboratory study of forms adapted to …
Variation In Taraxacum, Paul B. Sears
Variation In Taraxacum, Paul B. Sears
Papers in Ecology
To the editor of Science: Since several species of Taraxacum are parthenogenetic and at the same time highly variable they have. looked like tempting material for the study of certain phases of genetics. Moreover their "polysnorphy," as well as that of other parthenogenetic plants, has served as a partial basis for well-known attempts to explain parthenogenesis as due to hybridization.
Test 073: Wetmore 12-25, Nebraska Tractor Test Lab
Test 073: Wetmore 12-25, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Test 074: Huber Super 4 15-30, Nebraska Tractor Test Lab
Test 074: Huber Super 4 15-30, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Poetic Origins And The Ballad, Louise Pound
Poetic Origins And The Ballad, Louise Pound
Department of English: Faculty Publications
The leading theses of the present volume are that the following assumptions which have long dominated our thought upon the subject of poetic origins and the ballads should be given up, or at least should be seriously qualified; namely, belief in the "communal" authorship and ownership of primitive poetry; disbelief in the primitive artist; reference to the ballad as the earliest and most universal poetic form; belief in the origin of narrative songs in the dance, especially definition of the English and Scottish traditional ballad type as of dance origin; belief in the emergence of traditional ballads from the illiterate, …
Nebraska Test Special A: Shaw-Enochs Tractor Co. Shawnee Power Patrol, Nebraska Tractor Test Lab
Nebraska Test Special A: Shaw-Enochs Tractor Co. Shawnee Power Patrol, Nebraska Tractor Test Lab
Nebraska Tractor Tests
ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …
Research Bulletin 19, Regional Adaptation Of Corn In Nebraska, 1921
Research Bulletin 19, Regional Adaptation Of Corn In Nebraska, 1921
University of Nebraska Historical Extension: Bulletin
Research Bulletin 19, Regional Adaptation of Corn in Nebraska, 1921
Bulletin 177, Nebraska Tractor Tests, 1921
Bulletin 177, Nebraska Tractor Tests, 1921
University of Nebraska Historical Extension: Bulletin
Bulletin 177, Nebraska Tractor Tests, 1921
The Diatoms (Bacillarioideae) Of Nebraska, Clarence J. Elmore
The Diatoms (Bacillarioideae) Of Nebraska, Clarence J. Elmore
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
Class BACILLARIOIDEAE
One-celled aquatic plants living in filaments, or more commonly broken into single cells ; free, attached to the substratum, epiphytic on other plants, or enclosed in gelatinous tubes ; cell wall of cellulose infiltrated with silica; the wall of each cell (frustule) consisting of two plates (valves) which form the ends of the cell and are connected by two or more girdles, the one fitting outside the other like the cover of a box. Protoplasm parietal and forming a large mass in the center of the cell in which the nucleus is located and which separates the central …
An Experimental Study Of The Cathode Fall In Helium And Argon With Wire Cathodes, L. G. Raub
An Experimental Study Of The Cathode Fall In Helium And Argon With Wire Cathodes, L. G. Raub
University Studies (University of Nebraska) (1888–1984)
It was recognized rather early in the study of the phenomena of discharge of electricity through gases that the ordinary laws of conduction as found in solid and liquid conductors are not applicable to gases. It was shown by Zeleny and independently by Child that Ohm's law by no means represents the distribution of potential between electrodes in an ionized gas, but that the potential gradient is large in the vicinity of the electrodes, and not uniform throughout the space between them. When the pressure of the gas surrounding the electrodes is reduced to one or two millimeters and a …
Bulletin 178, Winter Wheat Seed-Bed Preparation, 1921
Bulletin 178, Winter Wheat Seed-Bed Preparation, 1921
University of Nebraska Historical Extension: Bulletin
Bulletin 178, Winter Wheat Seed-bed Preparation, 1921
Test 070: Minneapolis 17-30, Nebraska Tractor Test Lab
Test 070: Minneapolis 17-30, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Test 071: Avery 12-25, Nebraska Tractor Test Lab
Test 071: Avery 12-25, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …