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Articles 247711 - 247740 of 256036

Full-Text Articles in Life Sciences

Letter From W. H. Clark, Jr., To S. B. Simmons, W. H. Clark Jr. Sep 1950

Letter From W. H. Clark, Jr., To S. B. Simmons, W. H. Clark Jr.

Documents

Letter from W. H. Clark, Jr., to S. B. Simmons, concerning contract.


Letter From William H. Clark, Jr., To S. B. Simmons, William H. Clark Jr. Sep 1950

Letter From William H. Clark, Jr., To S. B. Simmons, William H. Clark Jr.

Documents

Letter from William H. Clark, Jr., to S. B. Simmons, requesting NFA supplies for his chapter.


Spiranthes Cernua (L.) Rich., Hampton Parker Sep 1950

Spiranthes Cernua (L.) Rich., Hampton Parker

Specimens by Name

No abstract provided.


Bulletin No. 341 - Rambouillet And Columbia-Rambouillet Lambs On The Range And In The Feed Lot, T. Donald Bell, Milton A. Madsen, James A. Bennett, Louis L. Madsen, D. Clarence Schmultz Sep 1950

Bulletin No. 341 - Rambouillet And Columbia-Rambouillet Lambs On The Range And In The Feed Lot, T. Donald Bell, Milton A. Madsen, James A. Bennett, Louis L. Madsen, D. Clarence Schmultz

UAES Bulletins

Sheep of predominately Rambouillet breeding have been most popular on southern Utah ranges because of their hardiness and wool-producing ability. In the early years of sheep production in Utah a major portion of the income was derived from the sale of wool. This situation has gradually changed over the past years and now income from the sale of lambs is greater than that from fleeces. Rambouillet rams with improved mutton qualities have been used by some range operators to increase the mutton producing abilities of their ewes. Other operators have used Corriedale, Panama, Columbia, and other white faced crossbred-type rams …


Spiranthes Cernua (L.) Rich., Allen Strader Sep 1950

Spiranthes Cernua (L.) Rich., Allen Strader

Specimens by Name

No abstract provided.


North And South Dakota Horticulture, September 1950, North And South Dakota State Horticultural Societies Sep 1950

North And South Dakota Horticulture, September 1950, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 23, Number 9

Semipalmated Sandpiper, Dr. O.A. Stevens
News From the National, Mrs. G.R. McArthur
Newslants, H.A. Graves
Storing Semi-Tender Plants, W.R. Leslie
Hardy Everblooming Roses, P.H. Wright
Garden Club Gleanings, Mrs. G.M. Jorgensen
Manitoba News Letter, W.R. Leslie
Transplanting, Mrs. Emma Dixon
Fruit and Vegetable Notes, F.X. Wallner
Hemerocallis Meeting, Mrs. G.M. Jorgensen
A New Lily Book, Mrs. H.B. Crandall
Secretary's Corner, W.A. Simmons
Fifty Years of Gardening, F.L. Skinner


Effect Of Stubble Mulching On Number And Activity Of Earthworms, S. P. Teotia, F. L. Duley, T. M. Mccalla Sep 1950

Effect Of Stubble Mulching On Number And Activity Of Earthworms, S. P. Teotia, F. L. Duley, T. M. Mccalla

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A survey of earthworm population under different cropping systems was made under stubble mulch farming and where the residue was plowed under. The influence of earthworms on some of the important physical and biological properties of the soil was studied. Their role in the decomposition of crop residues was also determined.


Aircraft In Agriculture, N. E. Shafer, J. D. Furrer, J. W. Lomax Sep 1950

Aircraft In Agriculture, N. E. Shafer, J. D. Furrer, J. W. Lomax

Nebraska Agricultural Experiment Station: Historical Circulars

Airplanes were first used in agriculture shortly after the close of World War I. They proved valuable for locating mosquito breeding areas, for forest fire patrol work, as an aid in locating outlaw cotton fields in the campaign against pink bollworm, and for surveying damage caused in large forested areas by the spruce budworm.


Letter From John M. Lowe To W. T. Johnson. Letter From John M. Lowe To Chairman Of Nominating Committee For Honorary Superior Farmer Degree, John M. Lowe Aug 1950

Letter From John M. Lowe To W. T. Johnson. Letter From John M. Lowe To Chairman Of Nominating Committee For Honorary Superior Farmer Degree, John M. Lowe

Documents

Letter from John M. Lowe to W. T. Johnson, enclosing letter nominating John W. Davis for the Honorary Superior Farmer award. Letter from John M. Lowe to Chairman of Nominating Committee for Honorary Superior Farmer Degree, nominating John W. Davis for the award..


The Growth-Promoting Properties Of Quinic Acid, Malcom Gordon, Francis A. Haskins, Herschel Mitchell Aug 1950

The Growth-Promoting Properties Of Quinic Acid, Malcom Gordon, Francis A. Haskins, Herschel Mitchell

Department of Agronomy and Horticulture: Faculty Publications

Evidence is accumulating that there is a common metabolic precursor to many of the benzene ring derivatives found in living organisms. Recent work by Davis and Tatum indicates that one such precursor is the naturally occurring shikimic acid (Fig. 1) since this compound serves as a growth factor for certain mutants of Escherichia coli and Neurospora which otherwise require a combination of tyrosine, phenylalanine, tryptophan and p-aminobenzoic acid for growth. These mutants cannot utilize the closely related, naturally occurring quinic acid (Fig. 1) as a substitute for any of their requirements.


Letter From W. H. Clark, Jr., To S. B. Simmons. "Halifax County Training School Gets New Agriculture Department", W. H. Clark Jr. Aug 1950

Letter From W. H. Clark, Jr., To S. B. Simmons. "Halifax County Training School Gets New Agriculture Department", W. H. Clark Jr.

Documents

Letter from W. H. Clark, Jr., to S. B. Simmons, requesting contract and sending in article he'd written on his school's new agriculture program. Article on new agriculture department at Halifax County Training School.


Liquid-Vapor In Equilibrium In Microscopic Capillaries. I. Aqueous Systems, Leon J. Shereshefsky Howard University Aug 1950

Liquid-Vapor In Equilibrium In Microscopic Capillaries. I. Aqueous Systems, Leon J. Shereshefsky Howard University

Department of Chemistry Faculty Publications

No abstract provided.


North And South Dakota Horticulture, August 1950, North And South Dakota State Horticultural Societies Aug 1950

North And South Dakota Horticulture, August 1950, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 23, Number 8

The Least Sandpiper, Dr. O.A. Stevens
Book Review, Mrs. Morris Harter
Newslants, H.A. Graves
Manitoba News Letter, W.R. Leslie
Persian Yellow Rose, A.L. Truax
Fall Planting of Gardens, W.R. Leslie
Gardener on Queen Mary, J.W. Johnson
Garden Club Gleanings, Mrs. G.M. Jorgensen
New Era in Insect Control, Dr. J.A. Munro
Book Review, Mrs. L.N. Brakke
Fruit and Vegetable Notes, F.X. Wallner
Secretary's Corner, W.A. Simmons
Transplanting and Treasuring Moisture, Mrs. Emma Dixon


Bulletin No. 340 - Adult Honey Bee Losses In Utah As Related To Arsenic Poisoning, G. F. Knowlton, A. P. Sturtevant, C. J. Sorenson Aug 1950

Bulletin No. 340 - Adult Honey Bee Losses In Utah As Related To Arsenic Poisoning, G. F. Knowlton, A. P. Sturtevant, C. J. Sorenson

UAES Bulletins

During 1947 the 55,000 colonies of honey bees in Utah produced approximately $545,000 worth of marketable honey and beeswax. In addition they pollinated most of the fruit, alfalfa seed, various vegetable and other seed crops. By 1949 the price of honey had declined to where the crop of honey and beeswax was worth $253,000, produced by 49,000 colonies of bees. The value of bees in Utah as pollinating agents to fruit and seed crops greatly exceeds the income received by beekeepers from bee products sold. Because agriculture receives such great benefit from bees, it seems reasonable that farmers who are …


Kentucky Warbler (Vol. 26, No. 3), Kentucky Library Research Collections Aug 1950

Kentucky Warbler (Vol. 26, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Liquid-Vapor In Equilibrium In Microscopic Capillaries. I. Aqueous Systems, Leon J. Shereshefsky Aug 1950

Liquid-Vapor In Equilibrium In Microscopic Capillaries. I. Aqueous Systems, Leon J. Shereshefsky

Faculty Reprints

No abstract provided.


The Influence Of Crop Plants On Those Which Follow V, Theodore Eugene Odland, Robert Smith Bell, John B. Smith Aug 1950

The Influence Of Crop Plants On Those Which Follow V, Theodore Eugene Odland, Robert Smith Bell, John B. Smith

Special Collections (Miscellaneous)

This is a study of the effect which crop plants have on the growth and yields of those crops which follow. The study began in 1907; this bulletin reports the results from 1930 to 1942. Millet, mangels and rutabagas generally seem to be harmful to crops which follow them. Carrots, mangels and millet were least favorable of all crops to mangels. Potatoes did poorest when following potatoes, rutabagas, or millet. Rutabagas yielded low following rutabagas, mangels and millet. Onions were unfavorably affect by preceding crops of mangels, cabbage, or rutabagas. There is no simple explanation for the effect of crops …


The Production Of A Hardy Strain Of Paramecium Aurelia Using Modified Ringers No. 2 Solution As A Primary Selecting Agent, John Austin James Aug 1950

The Production Of A Hardy Strain Of Paramecium Aurelia Using Modified Ringers No. 2 Solution As A Primary Selecting Agent, John Austin James

Tennessee State University Alumni Theses and Dissertations

No abstract provided.


A Preliminary Note On Trichinosis Investigations In Alaska, P. J. Brandly, Robert L. Rausch Aug 1950

A Preliminary Note On Trichinosis Investigations In Alaska, P. J. Brandly, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Trichinosis in the arctic regions of the world has received considerable attention during recent years, particularly since the work of Roth (1948) in Greenland. In Connell's (1949) review of arctic trichinosis some Alaskan and Canadian records were included but, until now, little has been known of the status of the disease in Alaska. Information available at the present time indicates that the incidence of trichinosis is high in circumpolar carnivores and that marine mammals have a definite place in its epizootiology. Present knowledge cannot explain the survival of trichinosis in marine mammal populations, but it is evident that they may …


Hay Vs No Hay For The First Two Months Of Raising Dairy Calves On A Limited Milk Feeding Plan, Eddie Mcconico Williams Aug 1950

Hay Vs No Hay For The First Two Months Of Raising Dairy Calves On A Limited Milk Feeding Plan, Eddie Mcconico Williams

Tennessee State University Alumni Theses and Dissertations

No abstract provided.


An Evaluation Of The Physical Facilities Of Negro Vocational Agricultural Departments In Tennessee, James Lemons Aug 1950

An Evaluation Of The Physical Facilities Of Negro Vocational Agricultural Departments In Tennessee, James Lemons

Tennessee State University Alumni Theses and Dissertations

No abstract provided.


Chrysophyllum Marginatum Radlk., B. Rambo Jul 1950

Chrysophyllum Marginatum Radlk., B. Rambo

Specimens by Name

No abstract provided.


Records Of Mammals From The Mexican State Of San Luis Potosi, Walter W. Dalquest Jul 1950

Records Of Mammals From The Mexican State Of San Luis Potosi, Walter W. Dalquest

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Comptonia Peregrina (L.) J.M. Coult., Tom Clark Jul 1950

Comptonia Peregrina (L.) J.M. Coult., Tom Clark

Specimens by Name

No abstract provided.


Myrica Gale L., Tom Clark Jul 1950

Myrica Gale L., Tom Clark

Specimens by Name

No abstract provided.


North And South Dakota Horticulture, July 1950, North And South Dakota State Horticultural Societies Jul 1950

North And South Dakota Horticulture, July 1950, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 23, Number 7

The Prothonotary Warbler, O.A. Stevens
My Neighbor, Louise Kinyon
Newslants, H.A. Graves
Report on Garden Meet, Mrs. D.S. Baughman
Manitoba News Letter, W.R. Leslie
Hybrid Tea Roses, J.M. Atkinson
Garden Club Gleanings, Mrs. G.M. Jorgensen
Book Review, Mrs. L.N. Brakke
Fruit and Vegetable Notes, F.X. Wallner
Laying Out the Garden, Mrs. F.J. McFarland
Secretary's Corner, W.A. Simmons
Certified Seed Potatoes, C.S. Blackman
Fall Planting for Your Garden, W.R. Leslie


Whole Issue Nebraska Bird Review (July 1950) 18(3) Jul 1950

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


South Dakota Farm And Home Research, Agricultural Experiment Station Jul 1950

South Dakota Farm And Home Research, Agricultural Experiment Station

South Dakota Farm and Home Research: 1949 -1998

Stillbestrol [p] 77
Farm Electrification [p] 81
Egg Marketing Losses [p] 85
Harvesting Prairie Hay [p] 88
Soils Surveyed for Irrigation in Spink County [p] 92
Transferring the Farm Within the Family [p] 95
Sprinkler Irrigation [p] 98
Control Insects in Alfalfa Fields [p] inside back cover


Studies On The Reactivating Sclerotium Of Physarella Oblong Morgan With Special Reference To The Nucleus, William Thomas Allman Jul 1950

Studies On The Reactivating Sclerotium Of Physarella Oblong Morgan With Special Reference To The Nucleus, William Thomas Allman

Master's Theses

The Myxomycetes, because of their naked, mobile mass of protoplasm have served biologists and chemists as material for the study of the char­acteristics of protoplasm. The typical life his­ tory of such an organism may be summarized as follows: The vegetative phase in the life history consists of a naked mass of protoplasm, to which Oienkowski (9) applied the name "plasmodium". This plasmodium creeps by reversible streaming over and throughout the substratum, deriving its food from various constituents of decaying vegetable matter which serve as its normal substrate. Upon reaching a state of maturity and under certain environmental conditions, the …


Stabilization Of Midwestern Grassland, J. E. Weaver Jul 1950

Stabilization Of Midwestern Grassland, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

Table of Contents:
Introduction
Introduction
Upland Communities Preceding And Following The Drought
Persistence And Effect Of Western Wheat Grass
Development Of Understory
Chief Invaders
Competition In Drought
Relative Penetration Of Water
Rate Of Infiltration
Relative Amounts Of Soil Moisture
7 Effects On Vegetation
Severity Of Competition In Drought
Persistence Of Effects After Drought
Effects On Forbs And Seedlings
Competition With Big Bluestem
Needle Grass Consociation
Prairie Dropseed Consociation
Indicators Of Delay In Recovery
Role Of Big Bluestem
Little Bluestem And The Return Of Its Type
Spreading Of Kentucky Bluegrass
Establishment Of Seedlings
New Soil Mulch And Return Of Understory
Return …