Digital Commons Network^™

Notes On Pocket Gophers From Jalisco, Mexico, With Descriptions Of Two New Subspecies, Hugh H. Genoways, J. Knox Jones Jr.

University of Nebraska State Museum: Mammalogy Papers

Systematic, distributional, and ecological data are provided for seven taxa, two described as new, of three species of the pocket gopher genus Pappogeomys in the Mexican state of Jalisco. The first Jaliscan record of Orthogeomys grandis also is reported and several instances of sympatric occurrence of pocket gophers are documented.

Test 1029: International Farmall 544 Hydrostatic Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Sire Effects In Different Housing Systems, G. R. Wiggans, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Over 1,000 Holstein herds in New York's Dairy Herd Improvement Cooperative were classified as to housing system. The two housing systems considered were stanchions and free stalls. First-lactation records (21,285) produced in these herds by daughters sired through artificial insemination were analyzed to determine if housing system would affect sire ranking. The study covered records started in 1964 through 1967.

The sire component of variance was estimated for each housing system for deviations of these records from their adjusted herdmate averages. The covariance between the means of daughters in each housing system was computed. The genetic correlation between sire effects …

Test 1027: Ford 9000 Diesel Dual Power (Also Ford 9000 Diesel Dual Power Row Crop, 8-Speed All Purpose And 8-Speed Row Crop), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1028: Allis-Chalmers 160 Diesel (Also Allis-Chalmers 6040 Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1026: Ford 8000 Diesel Dual Power (Also Ford 8000 Diesel Dual Power Row Crop), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Particle Tracks In Emulsion, Robert Katz, E. J. Kobetich

Robert Katz Publications

A new theory of track formation in emulsion accounts for the tracks of charged particles on the basis of a theory developed earlier for the response of biological molecules and NaI(T1) to energetic heavy ions. The probability that an emulsion grain will remain undeveloped when exposed to δ rays depositing a mean energy E is assumed to be e^-E/E₀ where E₀ is the dose at which l/e (37%) of the emulsion grains remain undeveloped, as in the one-or-more-hit cumulative Poisson distribution. The parameter E₀ incorporates variations in emulsion properties and processing conditions. Calculation of …

Agricultural Experiment Station News October 1969

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
READING IMPROVEMENT PROGRAM
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – October 1969
STATION AND RESEARCH BULLETINS PRINTED

Whole Issue Nebraska Bird Review (October 1969) 37(4)

Nebraska Bird Review

TABLE OF CONTENTS

1969 (Forty-fourth) Spring Migration and Occurrence Report ....................50

Pileated Woodpecker and Other Birds at Indian Cave State Park.................... 57

Correction to 1968 Nebraska Nesting Survey ....................61

Notes ....................61

Index: of Volume XXXVII ....................65

Water Resources News, Volume 1, No. 6, October 1969

Water Current Newsletter

FY 1971 Basic Allotment Project Deadline
Data Bank Advisory Committee Appointed by Governor Tiemann
National Symposium on Data and Instrumentation for Water Quality Management
Fund Cutback on Water Resources
Funding for Corps of Engineers Programs
Water and Land Resources Study Committee
Matching Grant Program for FY 1971
1970 Summer Institute on Water Resources
Research Review
New Publications Received by the Institute

Test 1025: John Deere 5020, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Aspergillosis In Wintering Mallards, Gary Pearson

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Losses among mallards (Anas platyrhynchos ) wintering on a seepage ditch below the Garrison Dam on the Missouri River at Riverdale, North Dakota, were reported on February 24, 1968. In early February, while conducting their annual winter banding operation, personnel of the North Dakota Game and Fish Department observed approximately 1.000 mallards on the ditch. Approximately 200 mallards were banded after being captured in a walk-in trap baited with corn and wheat located on the bank of the ditch. Snow covered the area and caused the ducks to concentrate at the bait site from the time of the banding …

A Technique For The Rapid Measurement Of Thermoelectric Power, G.R. Caskey, David J. Sellmyer, L.G. Rubin

David Sellmyer Publications

A new technique is described for rapid measurement of the thermoelectric power of rod-shaped specimens over a wide temperature range. The apparatus utilizes sensitive commercial dc amplifier for the sample and temperature gradient voltages and a multiple-point recorder for sampling these voltages as well as the sample temperature signal. The technique eliminates spurious thermal emf's in the leads and is based upon on-the-run recording of the sample and temperature gradient voltages as the temperature gradient slowly increases. As a test of this technique, the thermopower of pure nickel was measured between 4.2 and 300 K and the results are compared …

Influence Of Developmental Stage Of Melilotus Infesta Leaves On Resistance To Feeding By The Sweetclover Weevil, W. R. Akeson, G. L. Beland, Francis A. Haskins, H. J. Gorz

Department of Agronomy and Horticulture: Faculty Publications

Leaves of 6- to 8•week old Melilotus infesta plants contained progressively higher levels of nitrate as the leaves developed from the tightly pinched to the fully expanded stage. In weevil feeding tests on water extracts of these leaves a close relationship was found between actual feeding and the feeding predicted on the basis of nitrate content. At a given level of nitrate, extracts of young M. infesta leaves were less attractive to the weevil than were extracts of young M. officinalis leaves. Leaves of mature M. infesta plants contained very little nitrate, but water extracts of such leaves remained unattractive …

Genetic Studies Of Induced Mutants In Melilotus Alba. I. Short-Internode Dwarf, Curled Leaf, Multifoliolate Leaf, And Cotyledonary Branching, B. G. Gengenbach, Francis A. Haskins, H. J. Gorz

Department of Agronomy and Horticulture: Faculty Publications

Information obtained from the F₁, F₂, and F₃ generations of crosses between the normal annual M. alba progenitor line and the four mutants, short-internode dwarf, curled leaf, multifoliolate leaf, and cotyledonary branching, indicates that each character is conditioned by a single pair of alleles. The multifoliolate leaf character is dominant over the normal phenotype; the other three mutant characters are recessive. The symbols dw, cl, Mf, and cb are proposed as designations for the respective mutant genes.

Test 1023: John Deere 4000, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1024: John Deere 4020 Power Shift, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Beggar-Tick Injury To A Northern Cricket Frog And Two Species Of Minnows, Larry A. Witt, Leonard H. Sisson

Nebraska Game and Parks Commission: Staff Research Publications

Various authors have reported on injury to small fishes by achenes of beggar-ticks (Bidem sp.) Reimers and Bond (1966) reported on injury by beggar-ticks to redside shiners, Richardsonius balteatus and young chinook salmon Oncorhynchus tshawytscha. They suggested that presence of beggar-tick plants along banks of hatchery ponds and raceways might be injurious to young of the most aggressive feeders among fish. Allison (1967) described mortality of fingerling coho salmon, Oncorhynchus kisutch, caused by beggar-tick, B. cernuus, achenes. He noted losses of coho salmon 51 to 90 mm in total length held in hatchery raceways. Dead and …

Test 1022: Massey-Ferguson Mf 1080 (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1020: Massey-Ferguson Mf 175 (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1021: Massey-Ferguson Mf 180 (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Distribution And Selection Of Sharp-Tailed Grouse Dancing Grounds In The Nebraska Sandhills, Leonard H. Sisson

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The purpose of this paper is to report progress of certain aspects of research on sharp-tailed grouse in Nebraska. Specifically, I will discuss distribution and selection of display grounds by sharp-tailed grouse in the Nebraska Sandhills.

Test 1018: David Brown 3800 Selectamatic (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1019: David Brown 4600 Selectamatic (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Effects Of Metepa On Gametogenesis And Embryogenesis In The Large Milkweed Bug Oncopeltus Fasciatus (Dallas), Donald E. Lawson, Harold J. Ball

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Considerable research is currently being directed toward discovering means of controlling insects other than by applying insecticides. There are several promising concepts of control which minimize the use of insecticides and one of these is the use of sterilizing techniques. Some emphasis is currently being placed on the development of chemosterilant techniques. Many of the studies have been concerned with the screening of potentially active chemicals, whereas other research has dealt with the efficacy of field application. The more basic work has been accomplished through the participation of several disciplines. The purpose of this study was to characterize the effects …

Cc187 Revised 1969 Agriculture In Nebraska, Ralph D. Johnson

University of Nebraska-Lincoln Extension: Historical Materials

Campaign circular 187 Revised 1969 is about agriculture in Nebraska.

Nationwide Residues Of Organochlorine Pesticides In Wings Of Mallards And Black Ducks, Robert G. Heath

United States Fish and Wildlife Service: Publications

Nationwide monitoring of organochlorine pesticides in wings of more than 24,000 mallards and black ducks bagged during the 1965 and 1966 hunting seasons showed DDE to be the predominant residue, followed in order by DDT, DDD, dieldrin, and heptachlor epoxide. Residues were generally highest in wings from the Atlantic and Pacific Flyways, and lowest in the Central Flyway. DDE was reported for every State and was notably high in wings from New Jersey, Massachusetts, Connecticut, Rhode Island, New York, Pennsylvania, Alabama, California, and Utah. Dieldrin residues were prevalent in wings from Arkansas, Texas, Utah, California, and several States in the …

Water Resources News, Volume 1, No. 5, September 1969

Water Current Newsletter

New OWRR Director
Data Bank Bill Passed
Natural Resources Districting
Publicatino No. 2 Released
Thermal Pollution
Warren Hall Moves to Office of Science and Technology
Interior Department Organizes Urban Water Resources Research Program
New Director of Office of Saline Water
Changes in the Water Resources Research Act
Short Course - Ground Water Hydrology
Research Review

Agricultural Experiment Station News September 1969

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTORS OFFICE
UNIVERSITY OF NEBRASKA SCHOOL OF TECHNICAL AGRICULTURE
PERSONNEL ACTIONS
NEW GRANTS, CONTRACTS AND COOPERATIVE AGREEMENTS
GENERAL NOTES

Characterization Of Xanthomonas Phaseoli Bacteriophages, Anne K. Vidaver, Max L. Schuster

Department of Plant Pathology: Faculty Publications

Ten bacteriophages for Xanthomonas phaseoli were characterized. On the basis of adsorption rates, latent period and burst size, plaque morphology, host range, efficiency of plating, ultrastructure, sensitivity to osmotic shock, streptomycin sensitivity, temperature effects on plating efficiency, and serology, the phages were separated into at least three groups. Some of the phages were infectious for Pseudomonas phaseolicola (four strains) and P. syringae (one strain) in a narrow temperature range. The taxonomic and ecological significance of this finding is discussed.